Prefixes
are placed before the words to modify their meanings; like suffixes, they are
groups of letters that rarely serve a purpose unless attached to a word. Here
is a list of commonly used prefixes to give you an idea of how to identify
them.
Prefix
|
Meaning
|
Examples
|
-a
|
On/in/out/from
|
Away, aboard, arise, alight
|
-al
|
all
|
Alone, already
|
-be
|
by
|
Below, before
|
-by
|
Be/on the side
|
Bypass, byword
|
-for
|
through
|
forget, forgive
|
-fore
|
before
|
Forecast, foresee
|
-gain
|
against
|
Gainsay
|
-in
|
in
|
Inside, income
|
-mis
|
wrong
|
Mislead, mistake
|
-over
|
Above/beyond
|
overflow, overcharge
|
-out
|
out
|
Outside, outcome
|
-to
|
this
|
Today, tonight
|
-un
|
Not/to
reverse an action
|
Unkind, untie
|
-under
|
below
|
Underground, undersell
|
-with
|
Against/back
|
Withdraw, withhold
|
-wel
|
In good condition
|
Welcome, welfare
|
