अर्थ : Metal device shaped in such a way that when it is inserted into the appropriate lock the lock's mechanism can be rotated.

अर्थ : Something crucial for explaining.

अर्थ : Pitch of the voice.

अर्थ : Any of 24 major or minor diatonic scales that provide the tonal framework for a piece of music.

अर्थ : A kilogram of a narcotic drug.

अर्थ : A winged often one-seed indehiscent fruit as of the ash or elm or maple.

अर्थ : 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).

अर्थ : A coral reef off the southern coast of Florida.

अर्थ : (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.

अर्थ : A list of answers to a test.

अर्थ : A list of words or phrases that explain symbols or abbreviations.

अर्थ : A generic term for any device whose possession entitles the holder to a means of access.

अर्थ : Mechanical device used to wind another device that is driven by a spring (as a clock).

अर्थ : The central building block at the top of an arch or vault.

अर्थ : A lever (as in a keyboard) that actuates a mechanism when depressed.

अर्थ : Identify as in botany or biology, for example.

अर्थ : Provide with a key.

अर्थ : Vandalize a car by scratching the sides with a key.

अर्थ : Regulate the musical pitch of.

अर्थ : Harmonize with or adjust to.

अर्थ : Serving as an essential component.