anti in antiaircraft means --- against
aqua in aquarium means --- water
astro in astronaut means --- star
audi in audiovisual means --- to hear
auto in autobiography means --- self
contra in contradict means --- opposite
dict in dictate means --- to say
extra in extracurricular means --- beyond
geo in geography means --- earth
graph in mimeograph means --- to write
hyper in hyperactive means --- overly
logy in archeology means --- the study of
magni in magnify --- large
man in manicure means --- hand
meter in speedometer means --- to measure
multi in multimillionaire means --- many
ped in centipede means --- foot
phone in microphone means --- sound
post in postscript means --- after
pre in prehistoric means --- before
re in redecorate means --- again
scope in microscope means --- to look
scrip in prescription means --- to write
spec in spectator means --- to see
sub in submarine means --- below
super in supernatural means --- more than
tele in telescope means --- far
terra in terrestrial means --- earth
un in undesirable means --- not
vis in invisible means --- to see