combination lock
Noun
Meaning
lock that can be opened only by turning dials in a special sequence
Source: WordNetSynonyms
Antonyms
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Examples
And the most amazing part – This safe features a real, fully-functional 3-figure combination lock.
Teach them a lesson with this combination lock that reminds them who's boss.
The thing that sets this combination lock apart is its superior construction: an extra thick two inch steel body that is durable.
To open a new combination lock, reference the sticker on the back of the lock for the combination numbers.