broad|ly [ˈbro:dli US ˈbro:d-] adv
1.) in a general way, relating to the main facts rather than details
She knows broadly what to expect.
broadly similar/comparable/equivalent etc
We reached broadly similar conclusions.
Broadly speaking , there are four types of champagne.
Independent films are, broadly defined , movies that appeal to sophisticated audiences.
2.) smile/grin broadly
to have a big smile on your face which clearly shows that you are happy or amused
3.) including a range of different things or subjects
a broadly based school curriculum
We invest broadly to lessen the risk.

Dictionary of contemporary English. 2013.