• width; broadness
• the breadth of something is the distance between its two sides.
• breadth is also the quality of consisting of or involving many different things.
• see also hair's breadth.
by a hair's breadth
• narrowly, by a narrow margin
• very small space or distance, close, very narrow, narrow margin
• if something happens by a hair's breadth, it nearly did not happen at all.
• width of a hand, small unit of measurement