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How to spell curiosity

A Year 5 and 6 statutory spelling word, with the tricky part explained and a tip that makes it stick.

The answer

curiosity

C-U-R-I-O-S-I-T-Y

The part to watch: curious drops its u (curi-os-ity). The underlined letters are the ones most people get wrong.

The tricky part

Curiosity is related to curious, but it has no u after the o. Almost everyone writes "curiousity".

Curiosity is one of the words on the Year 5 and 6 list with a suffix to watch. A suffix is an ending such as -ment, -tion or -ed. Sometimes the root word changes when you add it: a letter is dropped, doubled or swapped.

Common mistakes with curiosity

  • Wrong: curiousityRight: curiosity
  • Wrong: curiostyRight: curiosity

A way to remember it

Curious loses its u when it grows into curiosity: curi + osity.

Curiosity in syllables

cu · ri · os · i · ty

Curiosity has 5 syllables. Say each one as you write it.

In a sentence

Curiosity made me open the mysterious box.

Curiosity on the statutory list

Curiosity is on the Year 5 and 6 statutory word list in the national curriculum for England. Children are taught these words in Years 5 and 6, when they are 9 to 11.

See all the Year 5 and 6 words

Test yourself

A short spelling test that starts with curiosity, then nine more words from the Year 5 and 6 list, read aloud. It works in your browser.

More words with a suffix to watch

These words from the Year 5 and 6 list share the same pattern as curiosity.

More words

Questions parents ask

How do you spell curious and curiously?

Curious ends -ous, and curiously keeps it. Only curiosity loses the u.

Spelling is one part of the picture

The free diagnostic checks maths, English and both kinds of reasoning, and shows what to practise next. No card is required.