anti-
What is against?
antibiotic, anticlimax
en-, em-
What is cause to?
empower, entangle
mid-
What is middle?
midway, midday
over-
What is over, too much?
overall, overworked
semi-
What is half, partly, not fully?
semicircle, semiformal
trans-
What is across?
transcontinental, transatlantic
auto-
What is self?
autograph, autobiography
fore-
What is before, front of?
forecast, foresee
mis-
What is wrongly?
misunderstand, misconduct
poly-
What is many, much?
polygon, polymer
sub-
What is under?
submarine, subconscious
tri-
What is three?
triangle, tripod
bi-
What is two?
bicycle, binocular
in-, im-, il-, ir-
What is not?
impossible, innocent
multi-
What is many, much?
multicolor, multipurpose
pre-
What is before?
prevent, preview
tele-
What is far, distant?
telescope, telephone, television
un-
What is not, opposite of?
unable, unhappy
de-
What is opposite?
devalue, dehumidify
inter-
What is between, among?
international, interject
non-
What is not?
nonsense, nondescript
quad-
What is four?
quadrilateral, quadrant
trans-
What is across, change, through?
transfer, transportation
uni-
What is one?
union, unicorn, unicycle
dis-
What is not, opposite of?
detach, deploy
micro-
What is small?
microscope, microwave
oct-
What is eight?
octopus, octagon
re-
What is again?
repeat, rebuild, recall
super-
What is above, beyond?
superhuman, superficial
under-
What is under, too little?
underground, undercurrent, underwhelmed