Meaning of TIME UNIT

WordNet Dictionary
	Definition:		[n]  a unit for measuring time periods
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	Synonyms:		unit of time
	See Also:		15 minutes, 30 minutes, 60 minutes, amount, attosecond, bell, day, ephemeris time, femtosecond, half-hour, hour, hr, mean solar day, mean solar time, mean time, measure, microsecond, millisecond, min, minute, month, msec, nanosecond, night, picosecond, quantity, quantum, quarter, quarter-hour, s, sec, second, ship's bell, sidereal day, solar day, TDT, terrestrial dynamical time, terrestrial time, TT, twenty-four hours