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key
mastery UK /kiː/ US /ki/nounverbadjname
card 1 of 10 · context meaning
Which meaning of 'key' best matches the usage in the sentence?
The bottom row of keys on the piano was slightly out of tune.
card 1 of 10 · context meaning
Which meaning of 'key' best matches the usage in the sentence?
The bottom row of keys on the piano was slightly out of tune.