Prefixes

See also Common Roots.

Prefixes

Prefix	Meaning	Examples
anti-	against	antibiotic
bi-	two	bicycle
contra-	against	contradict
di-	two	diameter, dichotomy
dis-	apart, away from	dissatisfied, disillusion
ex	former	ex-wife
ex-, e-	go out from	exit
extra-	beyond	extraterrestrial
hyper-	extremely	hyperactive
in-, im-, il-, ir-	negative, not	incapable, impossible, illogical, irresponsible
inter-	between	interaction, intermingle
intra-	within	intracoastal
intro-	inward	introduction
macro-	large	macroeconomics
micro-	tiny, small	microscope
mis-	wrong	misuse, misinform
mono-	one	monolingual
multi-	many	multinational
neo-	new	neophyte, neonatal
non-	negative, not	non-binding
omni-	all	omnipotent
poly-	many	polyglot
post-	after	postwar
pre-	before	previous
re-	again	reply, rearrange
retro-	backwards	retroactive
semi-	half	semiannual
sub-	under	submarine, subordinate
super-	above	supersede
tri-	three	tricycle, triplets
un-	negative, not	unidentified
uni-	one	unilateral