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Foundation level · Year 4 · free

lock

verb · Say it: LOK

What it means

Foundation

to fasten something shut, usually with a key, so others cannot open it

Remember to lock the back door before we leave for our holiday.

Similar and opposite words

Synonyms (similar meaning)

  • bolt
  • fasten
  • secure

Antonyms (opposite meaning)

  • open
  • unlock

More examples

  • Lily locked her diary so her brother couldn't read it.

Where the word comes from

From Old English loc, meaning a fastening.

Try a quick question

One question about “lock”, the way 11+ papers ask it (Foundation level).

lock: meaning for children (11+ vocabulary) | Academy11+