Definition of turnkey
: built, supplied, or installed complete and ready to operate a turnkey nuclear plant a turnkey computer system; also : of or relating to a turnkey building or installation a turnkey contract turnkey vendors
From the M-W Editors
First Known Use of turnkey
1927
2
turnkey
noun
turn·key
Definition of turnkey
turnkeys
: one who has charge of a prison's keys
First Known Use of turnkey
1647
Other Business Terms
TURNKEY Defined for English Language Learners
turnkey
adjective
Definition of turnkey for English Language Learners
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: complete and ready to be used
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See words that rhyme with turnkey Britannica English: Translation of turnkey for Arabic speakers
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