Make the prefix ‘un-’ your friend to increase your vocabulary

One of the best ways to expand your English vocabulary is to become familiar with prefixes and suffixes. For example, The prefix un- is easy to use and remember.

When applied to adjectives, the prefix un- means not:

happy ---> unhappy

lucky ---> unlucky

afraid ---> unafraid

When added to verbs, the prefix un- indicates a reversal of action:

lock ---> unlock

pack --->unpack

wrap ---> unwrap