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Glossary: word family

The words in a word family are normally related to each other by a combination of morphology, grammar and meaning.

  • teach – teacher
  • extend – extent – extensive
  • grammar – grammatical – grammarian

Y6 GPaS Test: Word families

Select the correct word for the blank:

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Word structure

The study of word structure is called morphology. Understanding word structure helps us:

  • improve spelling
  • expand vocabulary

In studying word structure, we start by looking at a few key concepts first:

  • root words
  • prefixes
  • suffixes

Root words are words, or parts of words, that can usually stand alone. The following are all root words:

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Word structure: Compounds

Compounds are combinations of root words, i.e. words that can occur on their own, to form a new established combination. They are sometimes spelt as one word, but also with a hyphen or as two words.

In English compound nouns, e.g. bookcase, laptop, smartphone, and compound adjectives, e.g. dripping wet, tax-free, are very common.

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