| Let us now consider some prefixes, their usual meanings, and how they
change the meanings of English words. |
||||
Prefixes:
| ||||
Negative & positive
|
Size
|
Location
|
Time & order
|
Number
|
un-
|
semi-
|
inter-
|
pre-
|
mono-
|
non-
|
mini-
|
super-
|
ante-
|
bi-
|
in-
|
micro-
|
trans-
|
fore-
|
hex-
|
dis-
|
ex-
|
post-
|
oct-
| |
re-
|
extra-
|
multi-
| ||
peri-
|
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| Study these tables. Try and find additional examples using your dictionary: |
| Prefix | Meaning | Examples | |
Negative:
|
un-
|
not
|
unmagnetized
|
in-
|
not
|
incomplete
| |
im-
|
not
|
impossible
| |
il-
|
not
|
illegal
| |
ir-
|
not
|
irregular, irrelevant
| |
non-
|
not connected with
|
non-programmable
| |
mis-
|
bad, wrong
|
misdirect
| |
mal-
|
bad, wrong
|
malfunction
| |
dis-
|
opposite feeling
|
disagree
| |
dis-
|
opposite action
|
disconnect
| |
anti-
|
against
|
antiglare, antistatic
| |
de-
|
reduce, reverse
|
demagnetize, decode
| |
under-
|
too little
|
underestimate
| |
Positive:
|
re-
|
do again
|
reorganize
|
over-
|
too much
|
overload
| |
| Prefix | Meaning | Examples |
semi-
|
half, partly
|
semiconductor
|
equi-
|
equal
|
equidistant
|
mini-
|
small
|
minicomputer
|
micro-
|
very small
|
microcomputer, microscopic
|
macro-
|
large, great
|
macroeconomics
|
mega-
|
large, great
|
megabyte
|
| Prefix | Meaning | Examples |
inter-
|
between, among
|
interface, interactive
|
super-
|
over
|
supersonic
|
trans-
|
across
|
transmit, transfer
|
ex-
|
out
|
exclude, extrinsic
|
extra-
|
beyond
|
extraordinary
|
| sub- | under | subschema, subtraction |
| infra- | below | infra-red |
| peri- | around | peripheral, periscope |
| Prefix | Meaning | Examples |
ante-
|
before
|
antecedent
|
pre-
|
before
|
prefix, preceding, precedent
|
prime-
|
first
|
primary, primitive
|
post-
|
after
|
postdated, post-natal
|
retro-
|
backward
|
retrograde, retroactive
|
| Prefix | Meaning | Examples |
semi-
|
half
|
semicircle
|
mono-
|
one
|
monochromatic
|
bi-
|
two
|
binary
|
tri-
|
three
|
triangle
|
quad-
|
four
|
quadruple
|
| penta- | five | pentagon |
| hex- | six | hexadecimal |
| sept(em)- | seven | September |
| oct- | eight | octal |
| dec- | ten | decimal |
| multi- | many | multiplexor, multicoloured |
| Prefix | Meaning | Examples |
pro-
|
before, in advance, forward
|
programme, progress, procreation
|
auto-
|
self
|
automatic
|
co-
|
together with
|
co-ordinate, co-operate
|
con-
|
together with
|
connect
|
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