Qt meaning : Quality time. A unit of liquid capacity equal to two pints; one-fourth (quarter) of a gallon. Equivalent to 1.136 liters in the UK and 0.946 liter (liquid quart) or 1.101 liters (dry quart) in the U.S. Four successive cards of the same suit. A fourth; a quarter; hence, a region of the earth. The absence of sound; quietness. The absence of movement; stillness, tranquility