PREFIXES AND THEIR MEANINGS

A prefix is placed at the beginning of a word to modify or change its meaning. Here are 7 common prefixes in English, together with their basic meaning and some examples.

 1. counter-
 meaning: opposition, opposite direction
 example: counter-attack, counteract

 2. extra-
 meaning: outside, beyond
 example: extracurricular, extramarital

 3. hemi-
 meaning: half
 example: hemisphere

 4. inter-
 meaning: between, among
 example: interact, interchange

 5. non-
 meaning: absence, negation
 example: non-smoker, non-alcoholic

 6. post-
 meaning: after in time or order
 example: postpone

 7. re-
 meaning: again
 example: repaint, reappraise, reawake