breadth /bɹɛdθ/noun 5forms 1phrases 3 noun5 •The extent or measure of how broad or wide something is; width.The breadth of the corridor is 4.5 metres. •Scope or range, especially of knowledge or skill."The breadth of this LPR system is spectacular and amounts to a warrantless search." — 2023 •A piece of fabric of standard width. •A style in painting in which details are strictly subordinated to the harmony of the whole composition. •The length of the longest path between two vertices in a graph. formsbreadths Phrases with breadth by a hair's breadthBy a narrow margin. hair's breadthA very small amount or distance. length and breadthThe entirety of a place being searched or traversed.