What is a prefix?
Prefixes are letters that are kept/ put at the start of words that change their meanings.
Or
A prefix is a letter or a group of letters attached to the beginning of a word that changes the meaning of that word .
For example,
" Un" is a prefix when we keep this prefix at the begining of word "happy" so, the meaning of word happy is changed and the new word is "unhappy."
The prefix un- usually means not. For example:
Unlock
Unhappy
Uncomfortable
Unlucky
Unfortunately
Why are prefixes used?
*Expand vocabulary by creating new words from a single root.
*Change meaning clearly (e.g., happy → unhappy).
*Save time in communication by expressing ideas briefly.
* Improve comprehension of unfamiliar words.
*Help in academic and exam learning, especially in English grammar and vocabulary.
* Show relationships such as time, number, degree, place, or negation.
Common Prefixes with Their Meanings
Prefix. Meaning. Example
un- not / opposite. Unhappy
re- again. rewrite
dis- not / opposite. dislike
pre- before. Preview
over- too much. overeat
non- not. nonviolent
Il, ir , im not- with out
Illegal, irresponsible, impossible
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