List of Prefixes -- American English -- Page 2


Prefix Meaning Examples Used
in, im, ir not indirect, imperfect, irregular 6555
micro small microscope, microphone 467
mis wrong mistake, misspell 833
ob, op against obstruct, oppress 892
para at the side of parallel, paramedic 433
photo produced by light photograph, Photostat 388
pre before precede, prevent, prepaid 1572
poly many polygamy, polytechnic 490
pro move forward, before project, proceed, propose 1937
re back reappear, recall, refresh 5265
sub under submarine, subnormal 943
tele at a distance telegram, telephone 279
trans across or above transport, transcontinental 465
tri three tricycle, triangle, tricolor 1063
un back, not untie, unfold, unhappy, unchanged 3181