march aggressively into another's territory by military force for the purposes of conquest and occupation; "Hitler invaded Poland on September 1, 1939"
penetrate or assault, in a harmful or injurious way; "The cancer had invaded her lungs"
occupy in large numbers or live on a host; "the Kudzu plant infests much of the South and is spreading to the North"
metal device shaped in such a way that when it is inserted into the appropriate lock the lock's mechanism can be rotated
a lever that actuates a mechanism when depressed
pitch of the voice; "he spoke in a low key"
something crucial for explaining; "the key to development is economic integration"
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"
a list of words or phrases that explain symbols or abbreviations
a list of answers to a test; "some students had stolen the key to the final exam"
any of 24 major or minor diatonic scales that provide the tonal framework for a piece of music
(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"
a coral reef off the southern coast of Florida
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)
a kilogram of a narcotic drug; "they were carrying two keys of heroin"
harmonize with or adjust to; "key one's actions to the voters' prevailing attitude"
regulate the musical pitch of
vandalize a car by scratching the sides with a key; "His new Mercedes was keyed last night in the parking lot"
provide with a key; "We were keyed after the locks were changed in the building"
a distinctive but intangible quality surrounding a person or thing; "an air of mystery"; "the house had a neglected air"; "an atmosphere of defeat pervaded the candidate's headquarters"; "the place had an aura of romance"
medium for radio and television broadcasting; "the program was on the air from 9 til midnight"; "the president used the airwaves to take his message to the people"
the region above the ground; "her hand stopped in mid air"; "he threw the ball into the air"
a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of; "air pollution"; "a smell of chemicals in the air"; "open a window and let in some air"; "I need some fresh air"
once thought to be one of four elements composing the universe (Empedocles)
expose to warm or heated air, so as to dry; "Air linen"
broadcast over the airwaves, as in radio or television; "We cannot air this X-rated song"
be broadcast; "This show will air Saturdays at 2 P.M."