1. [Noun]: 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. [Noun]: a kilogram of a narcotic drug; "they were carrying two keys of heroin"

3. [Noun]: a lever that actuates a mechanism when depressed

4. [Noun]: mechanical device used to wind another device that is driven by a spring (as a clock)

5. [Noun]: something crucial for explaining; "the key to development is economic integration"

6. [Noun]: a list of words or phrases that explain symbols or abbreviations

7. [Noun]: any of 24 major or minor diatonic scales that provide the tonal framework for a piece of music

8. [Noun]: a coral reef off the southern coast of Florida

9. [Noun]: a winged often one-seed indehiscent fruit as of the ash or elm or maple

10. [Noun]: metal device shaped in such a way that when it is inserted into the appropriate lock the lock''s mechanism can be rotated

11. [Noun]: the central building block at the top of an arch or vault

12. [Noun]: pitch of the voice; "he spoke in a low key"

13. [Noun]: a generic term for any device whose possession entitles the holder to a means of access; "a safe-deposit box usually requires two keys to open it"

14. [Noun]: a list of answers to a test; "some students had stolen the key to the final exam"

15. [Noun]: (basketball) a space (including the foul line) in front of the basket at each end of a basketball court; usually painted a different color from the rest of the court; "he hit a jump shot from the top of the key"; "he dominates play in the paint"

16. serving as an essential component; "a cardinal rule"; "the central cause of the problem"; "an example that was fundamental to the argument"; "computers are fundamental to modern industrial structure"

17. effective; producing a desired effect; "the operative word"

18. [Verb]: regulate the musical pitch of

19. [Verb]: vandalize a car by scratching the sides with a key; "His new Mercedes was keyed last night in the parking lot"

20. [Verb]: harmonize with or adjust to; "key one''s actions to the voters'' prevailing attitude"

21. [Verb]: identify as in botany or biology, for example

22. [Verb]: provide with a key; "We were keyed after the locks were changed in the building"

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