ab-	away from	absent abnormal
ad	to, toward	advance addition
after-	later, behind	aftermath afterward
anti-	against, opposed	antibiotic antigravity
auto-	self	automobile autobiography
be-	make	believe belittle
bi-	two	bicycle biceps
com, con, co-	with, together	commune concrete
contra-	against	contradict contrary
de-	downward, undo	deflate defect
deci-	ten	decibels decimal
dis-	not	dislike distrust
e, ex-	out of, prior	explain expense
en, em-	in, into, cover	engage employ
extra-	outside	extravagant extraterrestrial extracurricular
im-	not	impose imply
in-	into, not	include incurable
inter-	among	interact internal
macro-	large	macroeconomics macrobiotic
magni-	great	magnify magnificent
mega-	huge	megaphone megabucks
micro-	small	microscope microbe
mis-	wrongly	mistake mislead
non-	not	nonsense, nonviolent
over-	above, beyond	overflow overdue
post-	after	postdate postmark
pre-	before, prior to	preheat prehistoric
pro-	in favor of	protest protect
re-	again	repeat revise
re-	back	return rebel
sub-	under, beneath	submarine subject
super-	above,beyond	superior supernatural
tele-	far	telescope telephone
trans-	across	transfer transit
tri-	three	tricycle triangle
un-	not	unknown unjust
ultra-	beyond	ultraviolet ultrasuede
under-	beneath, below	underneath underline
uni-	one, single	unicorn uniform