v.
1.improve or perfect by pruning or polishing
2.make more complex, intricate, or richer
3.treat or prepare so as to put in a usable condition
4.reduce to a fine, unmixed, or pure state
5.attenuate or reduce in vigor, strength, or validity by polishing or purifying
6.make more precise or increase the discriminatory powers of
Idiom of the Day
packed in like sardines
to be packed somewhere very tightly
The commuters on the train were packed in like sardines during the morning rush hour.