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Prefixes. Prefixes a letter, syllable, or group of syllables added at the beginning of a word or word base. ap - to; nearness to approximant, approach. anti- against; opposite antifreeze, antibiotics. ante- before antecede. auto- self automatic, autograph. bi- two
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Prefixes a letter, syllable, or group of syllables added at the beginning of a word or word base
ap- to; nearness to approximant, approach
anti- against; opposite antifreeze, antibiotics
ante- before antecede
auto- self automatic, autograph
bi- two bifacial; bifocal
dis- opposite disagree; dishonest
extra- outside; beyond; besides extraordinary
in- not; go into inaccurate; inactive
sur- • over; above • surface, surpass
trans- • across; over • transcend, transfer
ultra- • extremely • ultramodern
un- • not • unable, unhappy