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Common Prefixes

common prefixes and their meanings

TermDefinition
anti- opposite or against / Example words: antiwar - someone who is against war
auto- self / autobiography - self biography; story of someone's life told by that person / automatic transmission - the car changes gears by itself
bi- two / bicycle - a cycle with two wheels / bisect - cut in two
co- together / cooperate - to work together
extra- beyond / extraterrestrial - a creature living beyond Earth / extraordinary - beyond the ordinary
hyper- too much / hyperactive child - a child that is too active
kilo- thousand / kilowatt - 1000 watts / kilogram - 1000 grams
mal- bad / malicious - having bad intentions / malformed - badly formed
micro- small or tiny / microscope - a tool that is used to view tiny things / microorganism - a tiny living thing
multi- many or much / multiple - many, more than one / multicolored - many colors
omni- all / omniscient - knowing all / omnipresent - able to be everywhere at once omnidirectional - able to go in all directions
pre- before / preface - comes before the rest of a book / pregame warm-up - comes before the game pretest - before the test
post- after / postpone - to put off until after or later / postscript - a commentary that comes after or at the end of a book
pseudo- false or fake / pseudonym - a false or fake name /
retro- backward or behind / retrofit - to make something older / retro music - music from the past
semi- half / semicircle - half a circle / semimonthly - happening every half month
tele- far away or far off / telescope - instrument used to see things that are far away
trans- over or across / transport - to move something over or across an area
tri- three / tripod - a stand having three legs tricycle - a cycle having three wheels
un- not / unhappy - not happy unpleasant - not pleasant
uni- one / uniform - everyone wears one outfit that's the same unicycle - cycle with one wheel
aqua- water / aquarium - a house for water and underwater creatures aquatic - having to do with swimming or water
biblio- book / bibliography - a list of books used to write a paper bible - sacred or holy book
bio- life / biology - the study of living things biography - the story of someone's life
cent- hundred / century - 100 years centimeter 1/100th of a meter
dent- tooth / dentist - a doctor specializing in teeth dental - having to do with teeth
derm- skin / dermatologist - doctor specializing in skin
Created by: MsRisch
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