n.
1.communication by the exchange of letters
2.compatibility of observations
3.the relation of correspondence in degree or size or amount
4.a function such that for every element of one set there is a unique element of another set
5.communication by exchange of letters
6.(mathematics) an attribute of a shape or relation
7.similarity by virtue of correspondence
Idiom of the Day
gulp for air
to desperately try to get some air or a breath
The man began gulping for air after he fell into the lake.
