v.
1.extend in one or more directions
2.become larger in size or volume or quantity
3.make bigger or wider in size, volume, or quantity
4.grow stronger
5.exaggerate or make bigger
6.add details, as to an account or idea
7.expand the influence of
Idiom of the Day
a rule of thumb
a basic or accepted pattern or rule
It is a rule of thumb in the fire department that nobody goes into a burning building by themselves.