Definition - key

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key
  1. United States lawyer and poet who wrote a poem after witnessing the British attack on Baltimore during the War of 1812; the poem was later set to music and entitled `The Star-Spangled Banner' (1779-1843)
  2. a winged often one-seed indehiscent fruit as of the ash or elm or maple
  3. a kilogram of a narcotic drug; "they were carrying two keys of heroin"
  4. harmonize with or adjust to; "key one's actions to the voters' prevailing attitude"
  5. metal device shaped in such a way that when it is inserted into the appropriate lock the lock's mechanism can be rotated
  6. regulate the musical pitch of
  7. a lever (as in a keyboard) that actuates a mechanism when depressed
  8. identify as in botany or biology, for example
  9. the central building block at the top of an arch or vault
  10. vandalize a car by scratching the sides with a key; "His new Mercedes was keyed last night in the parking lot"
  11. mechanical device used to wind anot

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