width

UK: /ˈwɪdθ/ US: /wɪdθ, wɪtθ/ ,(width, witth or, often, with)

WordReference Random House Learner's Dictionary of American English © 2025

width /wɪdθ, wɪtθ/   n. 

1. the size or amount of something measured from side to side;
   breadth:
   [countable] a width of sixty feet.
   [uncountable] sixty feet in width.
2. something, as a piece of cloth, of a particular width:
   [countable] She cut a width of silk and began to sew it.

WordReference Random House Unabridged Dictionary of American English © 2025

width  (width, witth or, often, with), n. 

1. extent from side to side;
   breadth;
   wideness.
2. a piece of the full wideness, as of cloth.

• wide + -th¹, modeled on breadth, etc. 1620–30

Collins Concise English Dictionary © HarperCollins Publishers::

width / wɪdθ/ noun

1. the linear extent or measurement of something from side to side, usually being the shortest dimension or (for something fixed) the shortest horizontal dimension
2. the state or fact of being wide
3. a piece or section of something at its full extent from side to side: a width of cloth
4. the distance across a rectangular swimming bath, as opposed to its length

Etymology: 17th Century: from wide + -th¹, analogous to breadth