Prefixes
Size and Amount
micro small (microscope)mini small (minivan)macro large (macro command)magn large (maximum)maxi large (magnify)mega large (megabyte) Negation
non- not (nonsmoking)un- not (unlikely); with verbs, un-indicates a reversal (unlock)in-, im-, il- not (insufficient, immobile, illogical)dis- not (dishonest); with verbs, dis- can indicate reversal (disjoin)a- not (atypical); in, on, at (asleep); up, on (arise); of (akin) All, Many, Partial, Half
multi- many (multicolored)poly- many (polytechnic)omni- all (omnivorous)pan- all (panorama)semi- partial (semiorganized)hemi- half (hemisphere)over- too much (overbaked)hyper- too much (hyperactive)extra- additional or extreme (extravagant)ultra- extremely (ultramodern)super- extra (superfluous)hypo- too little or lacking (hypothesis)under- lacking (underweight) Number
mono- one (monocle)uni- one (unify)bi- two (bicycle)di- two (dioxide)diplo- two (diplomat)du- two (duet)tri- three (trifold)deca- ten (decade)cent- hundred (centigrade)milli- thousandth (milligram)kilo- thousand (kilogram) Before or After
post- after (postscript)after- after (afterthought)fore- before (foreground)pre- before (preschool)pro- before (prologue); through (proceed)ante- before (antedate) Place
ex- out (export)im- in (import)intro- in (introvert)extra- out (extraordinary)inter- among (interdisciplinary)per- through (permanent)trans- across (trans-Atlantic)circum- around (circumscribe)peri- around (periscope)re- back (recline)retro- back (retrospect)com-, con-, co- with, together (committee, connect, cooperate)syn-, syl-, sym- with, together (synthesis, syllable, sympathetic) Good or Bad
bene- good, well (benefit)mal- bad, ill (malevolent)mis- bad, wrong (mistake)
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