Prefix
ab-
abnormal, absent
away;from
micro-
microscope, microwave, microphone
small
bi-
bicycle, bimonthly
two
non-
nonfiction, nonfat, nonstop
not
multi-
multicolor, multifamily
much;many
bio-
biology, biography
life
mid-
midway, middle
half
com-
combination, complete
together
re-
redo, restart, reread
again
fore-
forearm, foreword
before;earlier
con-
connect, confidence, contact
with;together
para-
paragraph, parallel
beside;side by side
de-
deposit, decline
down;away;from;undo
pre-
preview, predict
before
auto-
automatic, autograph
self
eco-
ecology, eco-friendly, ecosystem
earth
post-
postpone, postmark
after
dis-
disappear, disrespect
not;opposite;lack of
tri-
triangle, tricycle, trilogy
three
deca\deci-
decade, decimal
ten
hyper-
hyperactive, hyperbole
above;over
tele-
television, telephone
far
mis-
misunderstand, misfortune
bad
un-
unhappy, untied, unfair
not
over-
overdone, overhead
too much above