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
power behind the throne
the person who controls the person who seems to be in charge of something
The general is the power behind the throne in the small country and he has much influence.