- 1the distance or measurement from one side to the other; how broad or wide something is synonym width She estimated the breadth of the lake to be 500 feet. compare length
- 2a wide range (of knowledge, interests, etc.) He was surprised at her breadth of knowledge about music. The curriculum needs breadth and balance. a new political leader whose breadth of vision (= willingness to accept new ideas) can persuade others to change broad adjectivebroadly adverbbroaden verbbreadth nounIdioms
in or to all parts of a place They have traveled the length and breadth of North America giving concerts.
Check pronunciation: breadth