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Related to broaden: broaden your horizons
broaden (one's) horizons
To have a new experience. I'm really nervous to live at school, but I know I need to broaden my horizons and get some experience living without my family. I can't believe that Molly has never left the state before! She seriously needs to broaden her horizons!
to become wider; to expand. The river broadened out and became deeper. The road broadens out here.
broaden something out
to make something wider; to expand something. Now, broaden this part out a little, so it looks like a cloud, not a painted pillow. Broaden out the river in your painting so it looks very wide. The photographic view of the valley can be broadened out by using a different lens.
Travel broadens the mind.
Prov. When you travel, you learn things about the people and places you see. Marie: I never realized how well-off most Americans are until I visited India. Jane: So it's true that travel broadens the mind, huh? Everyone who gets the chance should go abroad. Travel broadens the mind.
broaden/widen somebody's horizons
to increase the range of things that someone knows about, has experienced, or is able to do This trip to the Far East has certainly broadened our family's horizons.