Prefixes and suffixes can help you understand a word. They give you important information about the word.
  
Some prefixes give adjectives the opposite meaning:

un- happy - unhappy   
im- possible - impossible
dis- satisfied - dissatisfied
ir- regular - irregular
il- legal - illegal

Other prefixes make a word negative:

anti- social - antisocial
non- profit - non-profit

Suffixes can tell you what type of word it is, e.g. nouns often end in -ment (enjoyment), -ness (happiness) or -ion (education). Here are some common suffixes for nouns.

-ment - management / arrangement
-ism - racism / communism
-ness - happiness / sadness
-ship - friendship / relationship
-er/-or - director / teacher
-tion - communication / education

Common suffixes for verbs:

-ate - create / activate
-ify - verify / solidify
-ise/-ize - authorise / categorise

Common suffixes for adjectives:

-able - reliable / capable
-al - accidental / universal
-ful - helpful / wonderful
-ous/-ious - dangerous / nervous / religious

-ive - creative / sensitive

Discussion

Is the advice in the Exam section helping you? Do you usually do well in tests and exams at school?

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