Word Formation & Derivatives
Prefixes, suffixes, compounds, inflections, and derived word families.
11746 words
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Some words in this topic are A2–C2 — part of Pro. A1 words are always free.
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inevitability
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/ɪnˌɛvətəˈbɪləti/
the quality of being certain to happen and unavoidable
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inflexible
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/ɪnˈflɛksəbəl/
not able to be bent, or unwilling to change
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inhalation
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/ˌɪnhəˈleɪʃən/
the act of breathing air or another substance into the lungs
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inimical
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/ɪˈnɪmɪkəl/
tending to obstruct or harm; hostile
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justiciary
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/dʒʌˈstɪʃiˌɛri/
an officer who administers justice, or relating to the administration of justice
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lamentable
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/ləˈmɛntəbəl/
deserving sorrow or regret; deplorable
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laudable
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/ˈlɔdəbəl/
deserving praise and commendation
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loosen
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/ˈlusən/
to make or become less tight or firmly fixed
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manifestation
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/ˌmænəfɛˈsteɪʃən/
an event or sign that shows something clearly
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maximal
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/ˈmæksəməl/
as great or large as possible
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meliorate
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/ˈmiljəˌreɪt/
to make or become better; to improve
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methodically
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/məˈθɑdɪkli/
in an orderly, systematic manner
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natal
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/ˈneɪtəl/
relating to the place or time of one's birth
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nocent
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/ˈnoʊsənt/
harmful or injurious; guilty
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ornamentation
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/ˌɔrnəmɛnˈteɪʃən/
decorative details added to something for adornment
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palaver
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/pəˈlævɚ/
prolonged and idle talk; a tedious fuss
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peaceable
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/ˈpisəbəl/
inclined to avoid conflict; peaceful in disposition
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peculiarly
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/pɪˈkjuljɚli/
in a strange or distinctively characteristic way
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postulate
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/ˈpɑstʃəˌleɪt/
to assume the existence of something as a basis for reasoning
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punition
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/pjuˈnɪʃən/
the act of punishing; punishment
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reconsideration
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/ˌrikənˌsɪdəˈreɪʃən/
the act of thinking about a decision again, often to change it
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rectify
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/ˈrɛktəˌfaɪ/
to put right; to correct something wrong
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remuneration
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/rɪˌmjunəˈreɪʃən/
money paid for work or a service; payment
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replication
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/ˌrɛpləˈkeɪʃən/
the action of copying or reproducing something
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repulsive
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/rɪˈpʌlsɪv/
arousing intense disgust
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rightful
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/ˈraɪtfəl/
having a legitimate or just claim; legally entitled
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routinely
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/ruˈtinli/
as a regular or habitual practice
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sameness
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/ˈseɪmnəs/
the quality of being identical or monotonously unvarying
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seasonable
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/ˈsizənəbəl/
suitable to the season, or opportune in timing
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sophisticate
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/səˈfɪstɪkət/
a worldly, cultured person of refined tastes
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telling
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/ˈtɛlɪŋ/
having a striking or revealing effect; significant
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unstable
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/ʌnˈsteɪbəl/
likely to change, fail, or collapse; not steady
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vulgar
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/ˈvʌlɡɚ/
lacking refinement or good taste; coarse
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waver
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/ˈweɪvɚ/
to be unsteady or undecided; to falter
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abstemious
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/æbˈstimiəs/
sparing or moderate in eating and drinking
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absurdity
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/əbˈsɝdəti/
the quality of being ridiculous or wildly unreasonable
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abysmal
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/əˈbɪzməl/
extremely bad; appalling
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acquirement
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/əˈkwaɪɚmənt/
the act of gaining something, or a skill so gained
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addlepated
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/ˈædəlˌpeɪtɪd/
confused, muddled, or foolish
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adherent
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/ædˈhɪrənt/
a supporter of a person, cause, or belief
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adjudicate
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/əˈdʒudɪˌkeɪt/
to make a formal judgment on a dispute
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adulteration
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/əˌdʌltəˈreɪʃən/
the act of making something impure by adding inferior substances
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agitation
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/ˌædʒəˈteɪʃən/
a state of nervous anxiety or vigorous stirring
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amenable
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/əˈminəbəl/
willing to agree or be persuaded; responsive
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antagonist
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/ænˈtæɡənɪst/
a person who actively opposes or is hostile to another
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apprehension
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/ˌæprɪˈhɛnʃən/
anxiety or fear about the future; the act of arresting
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atomize
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/ˈætəˌmaɪz/
to reduce to fine particles, or to fragment into units
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awfully
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/ˈɔfli/
very; to a great degree
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balmy
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/ˈbɑmi/
pleasantly warm and mild, of weather
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banal
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/bəˈnæl/
so lacking in originality as to be boring
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barney
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/ˈbɑrni/
a noisy quarrel or argument
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beefheaded
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/ˈbifˌhɛdɪd/
stupid or dull-witted
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betrayer
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/bɪˈtreɪɚ/
a person who is disloyal to a trust or cause
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bewildering
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/bɪˈwɪldɚɪŋ/
causing confusion or perplexity
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blather
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/ˈblæðɚ/
to talk at length in a foolish or nonsensical way
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blockheaded
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/ˈblɑkˌhɛdɪd/
stupid or stubbornly obtuse
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blustery
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/ˈblʌstəri/
characterized by strong gusty winds
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boastful
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/ˈboʊstfəl/
given to excessive pride in talking about oneself
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bobby
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/ˈbɑbi/
a British police officer
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bombastic
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/bɑmˈbæstɪk/
high-sounding but with little meaning; inflated in style
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boneheaded
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/ˈboʊnˌhɛdɪd/
foolish or stupid
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booty
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/ˈbuti/
valuable goods seized as plunder; loot
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boreal
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/ˈbɔriəl/
relating to the north or northern regions
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bountiful
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/ˈbaʊntɪfəl/
abundant or generously given
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breather
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/ˈbriðɚ/
a brief pause for rest
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brightness
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/ˈbraɪtnəs/
the quality or degree of being bright or luminous
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butty
C2+
/ˈbʌti/
a sandwich (British, dialectal)
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capitalistic
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/ˌkæpɪtəˈlɪstɪk/
relating to or favoring capitalism
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captivating
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/ˈkæptɪˌveɪtɪŋ/
capable of attracting and holding interest; charming
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castigation
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/ˌkæstɪˈɡeɪʃən/
severe criticism or punishment
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centenary
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/sɛnˈtɛnəri/
a hundredth anniversary
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changeling
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/ˈtʃeɪndʒlɪŋ/
a child secretly substituted for another in folklore, esp. by fairies
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chopper
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/ˈtʃɑpɚ/
a helicopter, or a tool for chopping
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circuitous
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/sɚˈkjuɪtəs/
taking a long and indirect route
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cocky
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/ˈkɑki/
overly self-confident in a brash way
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coincident
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/koʊˈɪnsɪdənt/
occurring together in time or space; corresponding
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commiseration
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/kəˌmɪzəˈreɪʃən/
sympathy and sorrow expressed for another's misfortune
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conclusive
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/kənˈklusɪv/
settling a matter decisively; leaving no doubt
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confounded
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/kənˈfaʊndɪd/
bewildered, or used as a mild oath of annoyance
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conglutinate
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/kənˈɡlutənˌeɪt/
to stick or glue together; to unite as if by adhesion
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congruous
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/ˈkɑŋɡruəs/
in harmony or agreement; suitable and fitting
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connatural
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/kəˈnætʃərəl/
innate or belonging by nature; of the same nature
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consecutively
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/kənˈsɛkjətɪvli/
one after another in unbroken succession
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copulate
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/ˈkɑpjəˌleɪt/
to engage in sexual intercourse
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damned
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/dæmd/
condemned to hell, or used as an intensifier of annoyance
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dandy
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/ˈdændi/
a man overly concerned with elegant dress; excellent
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dauntless
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/ˈdɔntləs/
showing fearlessness and determination
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decency
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/ˈdisənsi/
behavior that conforms to accepted standards of morality and propriety
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decipher
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/dɪˈsaɪfɚ/
to convert from code or obscure form into intelligible language
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definitive
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/dɪˈfɪnɪtɪv/
most authoritative and conclusive; final
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denizen
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/ˈdɛnɪzən/
an inhabitant or occupant of a particular place
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derivative
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/dɪˈrɪvətɪv/
imitative of others' work; a thing based on another source
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despicable
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/dɪˈspɪkəbəl/
deserving hatred and contempt; vile
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deterioration
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/dɪˌtɪriəˈreɪʃən/
the process of becoming progressively worse
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disarray
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/ˌdɪsəˈreɪ/
a state of disorder or confusion
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discernment
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/dɪˈsɚnmənt/
keen perception and good judgment
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