expression, ichidan verb
broaden one's horizons; widen one's knowledge; see more of the world
A set phrase meaning to expand one's experience and knowledge, often through travel, reading, or meeting people.
留学して見聞を広めたい。
I want to study abroad and broaden my horizons.
読書は見聞を広めるのに役立つ。
Reading helps to widen one's knowledge.