If something is broad it can mean it is wide or large. Something which is described as being broad can also be loosely defined or incorporate a number of different meanings or uses. Something which is broad can include diverse groups of people. Broad can also mean something general or non-specific. 

1. Reading a book about a subject that you are interested in is a great way of gaining a broader understanding of it.
2. My year travelling abroad really helped provide me with a broader perspective on life. I'm so glad I plucked up the courage to go.
3. The avenue in Paris was very broad, and lined on either side with beautiful trees.

1. If we want to keep growing as a company then we need to broaden our horizons and start looking at how we can break into the international market.
2. At the meeting, I gave a broad outline of my proposal for modernizing the business, and it was met with a favourable response.