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tuna1 any of various large sea fishes, including the bonito and the albacore, often caught for food by commercial fishermen. [2 definitions]
tuna2 any of various tropical cacti, including some species of prickly pears, that bear a sweet red fruit. [2 definitions]
tunable able to be tuned.
tundra one of the huge, treeless plains in the arctic regions of North America, Europe, and Asia. [2 definitions]
tune a sequence of agreeable musical tones; a melody. [12 definitions]
tuneful full of melody or tune. [2 definitions]
tune in to adjust (a radio or television) so it receives signals from a certain station, or to select (a certain station or program) on a radio or television. [2 definitions]
tuneless unmusical; unmelodious. [2 definitions]
tune out (informal) to dissociate from or ignore one's situation.
tuner one who tunes musical instruments. [2 definitions]
tunesmith (informal) a composer of popular music.
tune-up a general adjustment to put all parts, as of an engine, in good working order. [2 definitions]
tung oil a fast-drying oil derived from the seeds of the tung tree and used in paints, varnishes, and the like.
tungsten a chemical element that has seventy-four protons in each nucleus and that occurs in pure form as a gray metal solid with an extremely high melting point, used esp. in heat-resistant alloys and to make filaments for high-powered electric lamps; wolfram. (symbol: W)
tungsten lamp an electric lamp with a tungsten filament or filaments that uses very low wattage.
tungsten steel an alloy of steel and tungsten, having great hardness and high resistance to heat.
tung tree any of several Asian trees whose seeds yield tung oil.
tunic a loose-fitting, knee-length outer garment, often without sleeves and sometimes belted, worn esp. by the ancient Greeks and Romans. [4 definitions]
tunicate any of several marine chordates, such as sea squirts, having a saclike body enclosed in a thick membrane or tunic. [3 definitions]
tuning fork a small two-pronged metal device that when struck produces a tone in perfect pitch, used to tune musical instruments, test hearing, and the like.
Tunis the seaport capital of Tunisia. [2 definitions]