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.
Go ProC1 (1807) Pro
accustomed
C1
/əˈkʌs.təmd/
Used to something through repeated experience.
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blimey
C1
/ˈblaɪ.mi/
an informal British exclamation expressing surprise, excitement, anger, or alarm
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imminent
C1
/ˈɪmɪnənt/
About to happen very soon.
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plaster
C1
/ˈpla.stə/
a soft mixture of lime, sand, and water that hardens and is used to cover walls and ceilings
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volcanic
C1
/vɔlˈkænɪk/
of or relating to igneous rock produced by eruption and solidified on or near the earth's surface
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sentiment
C1
/ˈsɛn.tɪ.mənt/
A thought, opinion, or attitude, often based on feeling.
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withdrawn
C1
/wɪðˈdɹɔn/
Very quiet and not wanting to talk to or be with other people.
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appealing
C1
/ʌˈpi.əl.ɪŋ/
Attractive or interesting; making you want it or like it.
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isolate
C1
/ˈaɪ.sə.leɪt/
to separate someone or something from others
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offspring
C1
/ˈɔfspɹɪŋ/
A person's child or children.
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infamous
C1
/ˈɪnfəməs/
Well known for being bad or evil.
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caliber
C1
/ˈkæl.ə.bɚ/
the level of quality, ability, or importance of a person or thing
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vertical
C1
/ˈvɝ.tɪ.kəl/
Pointing or going straight up and down; at right angles to the ground.
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eccentric
C1
/ɛkˈsɛntɹɪk/
Behaving in a strange or unusual way; unconventional.
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lesser
C1
/ˈlɛsɚ/
Smaller in size, amount, or importance, especially when compared with something else.
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compelling
C1
/kəmˈpɛlɪŋ/
So interesting or exciting that it holds your full attention.
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ingenious
C1
/ɪnˈd͡ʒiːnjəs/
Cleverly inventive and original; very good at solving problems in new ways.
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patent
C1
/ˈpætənt/
An official right giving an inventor sole control over making and selling an invention for a set period.
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mandatory
C1
/ˈmæn.dəˌt(ɔ)ɹi/
Required by a rule or law; that must be done.
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premier
C1
/pɹɪˈmɪəɹ/
Best, most important, or highest in rank.
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phenomenal
C1
/fɪˈnɑmɪnəl/
Extremely impressive or remarkable
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maneuver
C1
/məˈnuvɚ/
A skillful or carefully planned movement.
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portable
C1
/ˈpɔɹtəbəl/
Easy to carry or move from place to place.
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cluster
C1
/ˈklʌstɚ/
A group of similar things positioned close together.
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sarcastic
C1
/sɑɹˈkæs.tɪk/
Using remarks that mean the opposite of what they say, in order to mock or insult.
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unprecedented
C1
/ʌnˈpɹɛsɪdɛntɪd/
Never having happened or existed before.
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extortion
C1
/ɪkˈstɔɹʃən/
The crime of getting money or property from someone by using threats or force.
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junction
C1
/ˈd͡ʒʌŋkʃən/
A place where two or more roads, railways, or routes meet.
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victorious
C1
/vɪkˈtɔːɹiəs/
Having won a contest, game, or struggle.
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thermal
C1
/ˈθɝməl/
relating to heat, temperature, or the transfer of heat
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shred
C1
/ʃɹɛd/
to tear or cut something into small, narrow pieces
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duration
C1
/dʒʊˈɹeɪʃn̩/
The length of time that something lasts or continues.
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formality
C1
/fɔːrˈmælɪti/
Something done only because it is required by custom or rule, without real importance.
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ordeal
C1
/ɔɹˈdil/
A trial in which the accused was subjected to a dangerous test (such as ducking in water), divine authority deciding the guilt of the accused.
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dominant
C1
/ˈdɑmənənt/
Most powerful, important, or noticeable.
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voluntarily
C1
/ˌvɑlənˈtɛɹɪli/
By choice, of one's own free will.
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malfunction
C1
/mælˈfʌŋkʃən/
To stop working properly or fail to work at all.
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sedative
C1
/ˈsɛdətɪv/
a drug that calms a person or reduces nervous system activity, sometimes causing sleep
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array
C1
/əˈɹeɪ/
A large group or wide range of things, often impressively displayed.
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synthetic
C1
/sɪnˈθɛtɪk/
Made artificially by chemical processes rather than coming from nature.
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ethical
C1
/ˈɛθɪkəl/
Morally right; following accepted principles of good behaviour.
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boundary
C1
/ˈbaʊndəɹi/
A line that marks where one area ends and another begins.
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aerial
C1
/ˈɛɹiəl/
existing or living or growing or operating in the air
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comply
C1
/kəmˈplaɪ/
To do what a rule, order, or request demands.
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ladyship
C1
/ˈleɪ.di.ʃɪp/
a respectful title or form of reference for a woman who holds or is entitled to a rank of nobility
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allegedly
C1
/əˈlɛdʒ.ɪd.li/
According to what people say, though it has not been proven.
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deploy
C1
/dɪˈplɔɪ/
To move troops or equipment into position ready for action.
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rotation
C1
/ɹoʊˈteɪʃən/
The act of turning around a central point or axis.
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solely
C1
/ˈsoʊl.li/
Only and not involving anyone or anything else.
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superficial
C1
/ˌsu.pɚˈfɪʃ.əl/
Not deep or thorough; dealing only with the obvious.
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timber
C1
/ˈtɪmbɚ/
Wood prepared for building or making things.
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intensity
C1
/ɪnˈtɛnsɪti/
The strength or degree of something such as a feeling or activity.
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confrontation
C1
/ˌkɑn.fɹənˈteɪ.ʃən/
An angry meeting or argument between people who disagree, often face to face.
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representation
C1
/ˌɹɛp.ɹə.zɛnˈteɪ.ʃən/
The act of speaking or acting on behalf of a person or group.
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well-being
C1
/wɛlˈbiː.ɪŋ/
The state of being healthy, happy, and comfortable.
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sensitivity
C1
/ˌsɛn.səˈtɪv.ə.ti/
The ability to understand and respond carefully to other people's feelings.
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removal
C1
/ɹɪˈmu.vəl/
The act of taking something away or getting rid of it.
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indictment
C1
/ɪnˈdaɪt.mənt/
A formal legal charge accusing someone of a serious crime.
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casualty
C1
/ˈkæʒu.əlti/
A person killed or injured in an accident, disaster, or war.
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fraction
C1
/ˈfɹæk.ʃən/
A small part of something larger.
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solidarity
C1
/ˌsɑ.ləˈdæɹ.ə.ti/
Unity and mutual support among a group of people who share the same goal or interest.
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seemingly
C1
/ˈsiːmɪŋli/
In a way that appears to be true, though it may not really be.
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provisions
C1
/pɹəˈvɪʒ.ənz/
Supplies of food and other essentials, especially for a journey or hard times.
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merger
C1
/ˈmɝ.d͡ʒɚ/
The joining of two or more companies into a single one.
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craving
C1
/ˈkɹeɪ.vɪŋ/
A very strong desire for something.
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renowned
C1
/ɹɪˈnaʊnd/
Famous and admired for something.
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cold-blooded
C1
/ˌkoʊldˈblʌd.ɪd/
deliberately cruel and showing no pity, emotion, or remorse
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presently
C1
/ˈprɛzəntli/
Soon; before long.
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distinctive
C1
/dɪˈstɪŋktɪv/
Having a special quality that makes something easy to recognize.
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upcoming
C1
/ˈʌpˌkəmɪŋ/
Happening or coming soon.
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steward
C1
/ˈstjuː.əːd/
A ship's officer who is in charge of making dining arrangements and provisions.
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credible
C1
/ˈkɹɛdəbl̩/
Able to be believed; convincing and plausible.
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capitalism
C1
/ˈkæpɪ̈tl̩ˌɪzm̩/
An economic system in which businesses and property are privately owned and run for profit.
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tinker
C1
/ˈtɪŋkɚ/
To make small adjustments to something, often without a clear plan, to try to fix or improve it.
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tangled
C1
/ˈtæŋ.ɡəld/
Twisted together into a messy, knotted mass.
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appalling
C1
/əˈpɔːlɪŋ/
Shocking and extremely bad.
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dictate
C1
/ˈdɪkˌteɪt/
To speak words aloud for someone else to write down or record.
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pioneer
C1
/ˌpaɪ.əˈnɪɹ/
A person who is among the first to develop or explore a new area, idea, or activity.
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thrive
C1
/θɹaɪv/
To grow strong and healthy.
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stuffy
C1
/ˈstʌfi/
Warm and lacking fresh air.
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Persian
C1
/ˈpɝʒən/
relating to Iran, especially its Persian people, language, culture, or history
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coordinate
C1
/koʊˈɔɹ.də.nɪt/
To organize different people or activities so that they work well together.
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reconstruction
C1
/ˌɹikənˈstɹʌkʃən/
The act of building or putting something together again, often better than before.
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enlightenment
C1
/ɪnˈlaɪtənmənt/
the gaining or giving of knowledge and clearer understanding
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drastic
C1
/ˈdɹæs.tɪk/
extreme, severe, or far-reaching in action or effect
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proceeding
C1
/pɹəˈsiːdɪŋ/
A legal action or process carried out in a court.
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minimal
C1
/ˈmɪn.ə.məl/
As small as possible; very little in amount or degree.
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partially
C1
/ˈpɑɹʃəli/
Partly; not completely.
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administrator
C1
/ədˈmɪn.ɪ.stɹeɪ.tɚ/
A person who manages or runs an organization, business, or government office.
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terminate
C1
/ˈtɝmɪneɪ̯t/
To end or stop something.
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reasoning
C1
/ˈɹiːzənɪŋ/
The process of thinking carefully and logically to reach a conclusion.
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commentator
C1
/ˈkɑmənˌteɪtəɹ/
A person who describes an event live on radio or television.
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cavity
C1
/ˈkæv.ɪt.i/
A hole or hollow space inside a solid object.
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monopoly
C1
/məˈnɑpəli/
Complete control of a market by a single company, with no competition.
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entity
C1
/ˈɛn.tɪ.ti/
A thing that exists as a single, separate unit, often an organization.
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infinity
C1
/ɪnˈfɪnɪti/
endlessness, unlimitedness, absence of a beginning, end or limits to size.
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