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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peter
C2
/ˈpiː.tɚ/
usually peter out: to diminish gradually in strength, quantity, or activity and finally stop
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standing
C2
/ˈstændɪŋ/
A person's or group's status, rank, or reputation.
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japan
C2
/dʒəˈpæn/
a hard, usually dark lacquer or enamel used to give wood or metal a durable glossy finish
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sonny
C2
/ˈsʌni/
an informal, often affectionate form of address to a boy or younger man
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amber
C2
/ˈæm.bɚ/
a hard, translucent yellow or brown fossil resin, often used in jewelry and sometimes containing preserved organisms
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spencer
C2
/ˈspɛnsɚ/
A short, close-fitting jacket primarily worn by women and children in the early 19th century.
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galaxy
C2
/ˈɡɛl.ək.si/
a vast gravitationally bound system of stars, gas, dust, dark matter, and other astronomical objects
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dummy
C2
/ˈdʌmi/
having the appearance of being real but lacking capacity to function
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brandy
C2
/ˈbɹændi/
distilled from wine or fermented fruit juice
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rascal
C2
/ˈɹæskl̩/
A dishonest person; a rogue, a scoundrel, a trickster.
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nigger
C2
/ˈnɪɡɚ/
extremely offensive racial slur directed at a Black person; included for understanding historical texts, never as a neutral term
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piper
C2
/ˈpaɪ.pɚ/
a musician who plays a pipe, flute, or especially bagpipes
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pony
C2
/ˈpoʊni/
A small serving of an alcoholic beverage, especially beer.
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palmer
C2
/ˈpɑmɚ/
historical: a pilgrim to the Holy Land, traditionally identified by the palm branch carried on returning home
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perimeter
C2
/pəˈɹɪmətɚ/
the total length of the boundary of a two-dimensional shape
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interrogation
C2
/ɪnˌteɹ.əˈɡeɪ.ʃən/
The act of questioning someone closely, often by police.
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cigar
C2
/sɪˈɡɑɹ/
a roll of tobacco leaves made to be smoked
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coroner
C2
/ˈkɔɹ.ə.nɚ/
A public official who presides over an inquest into unnatural deaths, and who may have (or historically had) additional powers such as investigating cases of treasure trove.
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attic
C2
/ˈætɪk/
of or relating to Attica or its inhabitants or to the dialect spoken in Athens in classical times
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suspenseful
C2
/səˈspɛnsfəl/
causing excited uncertainty or anxiety about what will happen next
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mutant
C2
/ˈmjuː.tənt/
an organism, cell, gene, or other biological entity that carries a mutation
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cardinal
C2
/ˈkɑɹdɪnəl/
serving as an essential component
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dexter
C2
/ˈdɛks.tɚ/
heraldry: on or toward the bearer's right side of a shield, which appears on the viewer's left
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ironic
C2
/aɪˈɹɑ.nɪk/
Surprising because it is the opposite of what you would expect.
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proposition
C2
/ˌpɹɑpəˈzɪʃən/
An idea, plan, or suggestion that is offered for consideration.
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dagger
C2
/ˈdæɡɚ/
A stabbing weapon, similar to a sword but with a short, double-edged blade.
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cosmic
C2
/ˈkɑz.mɪk/
Relating to the universe or outer space.
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sherry
C2
/ˈʃɛɹi/
A fortified wine produced in Jerez de la Frontera in Spain, or a similar wine produced elsewhere.
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raven
C2
/ˈɹeɪvən/
feed greedily
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madman
C2
/ˈmædˌmæn/
an insane person
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hysterical
C2
/hɪˈstɛɹɪkəl/
Showing wild, uncontrollable emotion, such as panic, fear, or excitement.
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steed
C2
/stiːd/
A stallion, especially one used for riding.
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jasper
C2
/ˈd͡ʒæs.pɚ/
an opaque, impure variety of chalcedony occurring in red, yellow, brown, green, and other colors and used as a gemstone or ornamental stone
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solitary
C2
/ˈsɑlɪˌtɛɹi/
Alone; done or existing without others.
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ungrateful
C2
/ʌnˈɡɹeɪtfəl/
not feeling or showing gratitude
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cement
C2
/səˈmɛnt/
concrete pavement is sometimes referred to as cement
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slippery
C2
/ˈslɪpəɹi/
causing or tending to cause things to slip or slide
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informant
C2
/ɪnˈfɔɹmənt/
A person who secretly gives information, especially to the police.
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tactical
C2
/ˈtæktɪk(ə)l/
Done carefully to gain a particular advantage; relating to tactics.
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parlor
C2
/ˈpɑɹlɚ/
a room in a private house or establishment where people can sit and talk and relax
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rosemary
C2
/ˈɹoʊzˌmɛɹi/
an aromatic evergreen shrub with narrow leaves, grown as a culinary and medicinal herb
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prostitution
C2
/ˌprɑː.stəˈtuː.ʃən/
the practice or occupation of engaging in sexual activity in exchange for money or other payment
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transmitter
C2
/trænˈsmɪtɝ/
A device that sends out radio, television, or other signals.
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rover
C2
/ˈroʊvɚ/
a person who wanders or travels without settling in one place
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erotic
C2
/ɪˈrɑtɪk/
relating to sexual desire, love, or sexual excitement
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concussion
C2
/kənˈkʊʃən/
A violent collision or shock.
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vicar
C2
/ˈvɪkɚ/
in the Church of England, a clergyman appointed to act as priest of a parish
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reindeer
C2
/ˈɹeɪndɪɹ/
Arctic deer with large antlers in both sexes
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contagious
C2
/kənˈteɪdʒəs/
capable of being transmitted from one person or organism to another, especially through direct or indirect contact
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homecoming
C2
/ˈhoʊmˌkʌmɪŋ/
a coming to or returning home
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radioactive
C2
/ˌɹeɪdioʊˈæktɪv/
exhibiting or caused by radioactivity
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groan
C2
/ˈɡɹoʊ̯n/
indicate pain, discomfort, or displeasure
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eminence
C2
/ˈɛmɪnəns/
The state of being famous and highly respected in a field.
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sawyer
C2
/ˈsɔɪ.ɚ/
a person employed to saw wood, especially timber in a sawpit or sawmill
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legion
C2
/ˈli.d͡ʒən/
A very large number of people or things.
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scorpion
C2
/ˈskɔːrpiən/
an arachnid with grasping pincers and a segmented tail ending in a venomous sting
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abduction
C2
/æbˈdʌk.ʃn̩/
the act of taking a person away unlawfully by force or deception
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believer
C2
/bɪˈlivɚ/
A person who believes; especially regarding religion.
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typewriter
C2
/ˈtaɪˌpraɪtɝ/
One who uses a typewriter; a typist.
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revolver
C2
/ɹɪˈvɒl.vɚ/
Synonym of revolving line of credit, a form of credit permitting the holder to repeatedly borrow money.
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shaggy
C2
/ˈʃæɡi/
Having long, thick, and uncombed hair, fur or wool.
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panther
C2
/ˈpænθɚ/
a black-coated leopard, or less often a black-coated jaguar
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vicinity
C2
/vəˈsɪnəti/
The area near or around a particular place.
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fiery
C2
/ˈfaɪəɹi/
like or suggestive of fire
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bladder
C2
/ˈblædɚ/
A container in the form of a flexible bag.
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suction
C2
/ˈsʌkʃən/
the process or force by which reduced pressure draws in a fluid or makes surfaces adhere
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carver
C2
/ˈkɑɹvɚ/
someone who carves the meat
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Martian
C2
/ˈmɑːr.ʃən/
of or relating to the planet Mars or its actual or imagined inhabitants
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interrogate
C2
/ɪnˈtɛɹ.əˌɡeɪt/
To question someone closely and often aggressively.
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precaution
C2
/pɹiːˈkɔːʃən/
a precautionary measure warding off impending danger, damage or injury
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lunar
C2
/ˈlunɚ/
of or relating to or associated with the moon
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bloodshed
C2
/ˈblʌdˌʃɛd/
the shedding of blood resulting in murder
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treacherous
C2
/ˈtɹɛt͡ʃəɹəs/
Dangerous and unpredictable, especially because hidden hazards are hard to see.
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golly
C2
/ˈɡɑli/
a mild, old-fashioned expression of surprise, alarm, or enthusiasm
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splinter
C2
/ˈsplɪn.tɚ/
A small, thin, sharp piece of wood, glass, or metal.
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ducky
C2
/ˈdʌki/
informal, especially British and sometimes dated: an affectionate form of address for a person
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melancholy
C2
/ˈmɛl.ənˌkɑ.li/
A deep, thoughtful sadness.
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gunpowder
C2
/ˈɡʌnˌpaʊdɚ/
An explosive mixture of saltpetre (potassium nitrate), charcoal and sulfur; formerly used in gunnery but now mostly used in fireworks.
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bridal
C2
/ˈbɹaɪd(ə)l/
of or pertaining to a bride
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syndicate
C2
/ˈsɪn.də.kət/
a group of people or organizations that combine resources to carry out a business, project, or shared purpose
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signor
C2
/siːˈnjɔːr/
a courtesy title used before the name of, or in addressing, an Italian man; equivalent to Mr. or sir
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superstitious
C2
/ˌs(j)u.pɚˈstɪ.ʃəs/
showing ignorance of the laws of nature and faith in magic or chance
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quadrant
C2
/ˈkwɑ.dɹənt/
one of four roughly equal sectors into which a plane, circle, area, or display is divided
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mutiny
C2
/ˈmju.tə.ni/
An organized rebellion against a legally constituted authority, especially by seamen against their officers.
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adultery
C2
/əˈdʌltəɹi/
extramarital sex that willfully and maliciously interferes with marriage relations
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perpetrator
C2
/ˈpɝpəˌtɹeɪtɚ/
a person who commits a crime, harmful act, or other wrongdoing
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watchman
C2
/ˈwɒtʃmən/
A man set to watch: a man who keeps guard, especially one who guards a building, or the streets of a city, by night; (loosely) any such person of any sex or gender.
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viper
C2
/ˈvaɪpɚ/
a person who is considered dangerous
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obnoxious
C2
/əbˈnɑkʃəs/
Unjustly disagreeable, argumentative or objectionable; brazenly rude.
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glitter
C2
/ˈɡlɪtəɹ/
A bright, sparkling light; shininess or brilliance.
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gravitational
C2
/ˌɡɹævɪˈteɪʃənəl/
Relating to or caused by gravity.
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gunman
C2
/ˈɡʌnmən/
a criminal armed with a gun, especially a professional killer.
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platter
C2
/ˈplætɚ/
a large, shallow dish or tray used for serving food
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unsolved
C2
/ʌnˈsɑlvd/
not solved
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tactic
C2
/ˈtæktɪk/
A particular action or method planned to achieve a goal.
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slimy
C2
/ˈslaɪ.mi/
covered with or resembling slime
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