Synonyms and Antonyms: Words That Match and Words That Clash

Grade 2 · English · Study Guide

Learn about words that mean the same thing and words that mean the opposite.

Words are powerful tools — and when you know synonyms and antonyms, your tool box gets a lot bigger! A synonym is a word that means the same thing (or almost the same thing) as another word. 'Happy' and 'glad' are synonyms. 'Big' and 'large' are synonyms. Using synonyms makes your writing more interesting because you do not have to use the same word over and over.

An antonym is a word that means the OPPOSITE. 'Hot' and 'cold' are antonyms. 'Happy' and 'sad' are antonyms. 'Up' and 'down' are antonyms. Antonyms help you describe differences and contrasts in your writing.

Here is a trick for remembering these terms: SYNONYM starts with S and so does SAME. ANTONYM starts with A and has the word 'anti' in it — anti means against, which helps you remember it means opposite!

Good writers use synonyms to add variety and avoid repeating the same words. Instead of writing 'The big dog was big and the big yard was big,' a good writer might write 'The large dog was huge and the enormous yard was spacious.' Much more interesting!

Common Synonyms
WordSynonyms
happyglad, joyful, cheerful, pleased
biglarge, huge, enormous, giant
fastquick, speedy, swift, rapid
sadunhappy, gloomy, miserable, upset
smalllittle, tiny, miniature, petite
Common Antonyms
WordAntonym
hotcold
updown
happysad
fastslow
bigsmall
lightdark

Key terms

synonym
A word that means the same or nearly the same as another word
antonym
A word that means the opposite of another word
thesaurus
A reference book that lists synonyms and antonyms for words

Flashcards

synonym
A word that means the same or nearly the same (happy = glad)
antonym
A word that means the opposite (hot ↔ cold)
happy synonyms
glad, joyful, cheerful, pleased, delighted
big synonyms
large, huge, enormous, giant, massive
fast synonyms
quick, speedy, swift, rapid, hasty
hot/cold antonym pair
hot ↔ cold — a classic antonym pair

Practice questions

  1. Which word is a synonym for 'happy'?

    1. sad
    2. glad
    3. angry
    4. tired
    Show answer

    Answer: glad

    'Glad' means the same as 'happy' — both describe a feeling of joy. They are synonyms.

  2. A word that means the opposite of another word is called an ___.

    Show answer

    Answer: antonym

    An antonym is a word that means the opposite of another word.

  3. 'Big' and 'large' are synonyms.

    Show answer

    Answer: True

    'Big' and 'large' both mean the same thing — something that takes up a lot of space. They are synonyms.

  4. What is an antonym for 'hot'?

    1. warm
    2. cool
    3. cold
    4. heat
    Show answer

    Answer: cold

    'Cold' is the opposite of 'hot' — they are antonyms. 'Cool' is close but not the strongest opposite.

  5. Synonyms mean exactly identical things with zero difference.

    Show answer

    Answer: False

    Synonyms are similar but not always identical. 'Happy' and 'ecstatic' are synonyms, but ecstatic means VERY happy — there is a shade of difference.

Fun facts

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