zero(a)
n. a quantity of no importance 同义词:nothingnilnixnadanullaughtciphercyphergoose eggnaughtzilchzipzippo
a mathematical element that when added to another number yields the same number 同义词:0noughtciphercypher
the quantity that registers a reading of zero on a scale 同义词:zero point
v. adjust (an instrument or device) to zero value adjust (as by firing under test conditions) the zero of (a gun)"He zeroed in his rifle at 200 yards"
同义词:zero in
adj.