There are four main kinds of word formation: prefixes, suffixes, conversion and compounds.
Prefixes
We add prefixes before the base or stem of a word.
examples | prefixes |
monorail, monolingual | mono- means ‘one’ |
multipurpose, multicultural | multi- means ‘many’ |
post-war, postgraduate | post- means ‘after’ |
unusual, undemocratic | un- means ‘not’ or ‘opposite to’ |