n.
1.a calm lengthy intent consideration
2.the phenomenon of a propagating wave (light or sound) being thrown back from a surface
3.expression without words
4.the image of something as reflected by a mirror (or other reflective material)
5.a likeness in which left and right are reversed
6.(mathematics) a transformation in which the direction of one axis is reversed
7.a remark expressing careful consideration
8.the ability to reflect beams or rays
Idiom of the Day
goof up
to make a mistake, to perform badly
The boy goofed up during his performance.