Common Word Parts

Prefix a, ab, abs a, an ambi, amphi a, ac, ad, af, ag, al, an, ap, ar, as, at ante ant, anti arch auto bene, ben bi cent circum co, col, com, con, cor

Meaning off, from, away not, without around, both to, toward, near good, well two hundred around with, together before in time or order against first, chief self

Examples avocation, absent, abstract atypical, anonymous amphibious, ambidextrous acquire, adjacent, allude, annex, append, arrive, associate, attract antecedent, antediluvian, antemeridian antagonist, antipathy archetype, architect automobile benefactor, beneficial bilateral, bicycle centipede circumnavigate, circumference cooperate, colleague, combine, concurrent, correspond contradict, counterclockwise descend, debark, dehydrate decade, December, decimal demigod, demitasse dichromatic diameter discourage, disobey di dia dis contra, contro, counter de dec, decem, decim demi against down, away, undoing ten half twice, double across, through not, away, away from

Prefix

Meaning

Examples

dys

bad, poor

dyslexia, dysfunctional

e, ec, ef, es, ex

out, out of

eccentric, eclipse, efface, emigrate, erode, escarpment,

extrasensory

equi

equal

equivalent

extra

outside, beyond

extraterrestrial

fore

in front of, previous

forecast, foreleg

geo

earth

geography

homo

same, similar

homogenized, homonym

hyper

over, excessively

hyperactive, hypertension

hypo

under, too little

hypodermic, hypothyroid

i, il, im, in, ir

not, without

ignore, illegible, immature, ineligible, irreplaceable

in, il, im, ir

in, on, into, toward

induct, illuminate, imbibe, imprint, irradiate

inter

between, among

interurban, intercontinental

intra, intro

within, inside

intramural, introspect

mis

wrong(ly), incorrect(ly)

misbehave, misspell

non

not

nonsense, nontaxable

ob

over, against, toward

obstruct

par, para

beside, contrary to, beyond

parallel, paradox, parachute

per

through, thoroughly

perfect, perennial

post

after in time or order

postgraduate, postscript

pre

before in time or order

preamble, preview

pro

before in time or order,

proceed, prologue, promise, proslavery

forward, for

re

again, back

reappear, reaction

retro

backward

retrospective

semi

half

semicircle

sub, suc, suf, sug, sum,

under, beneath

submarine, succumb, suffer, suggest,

sup, sur, sus

summon, support, surrogate, suspect

super

above, more than

superior

sur

over, above, beyond

surpass, surtax

sy, syl, sym, syn

with, together

syllable, sympathy, synchronize

tel, tele

distant, far

television, telegraph, telescope

trans

across, through, beyond

transcend, transcription, transoceanic

un

not, lack of, opposite of

unburden, uninhibited

vice

acting for, next in rank to

viceroy, vice president

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