noun

stair

stair, step

The bottom stair is broken.

The bottom stair is broken.

Be careful on that loose stair.

Be careful on that loose stair.

((a/the)) stair a single step in a flight of stairs The bottom stair is broken.

Synonyms: step, tread

From Old English *stǣger* 'a thing for climbing', related to *stīgan* 'to climb'.

A single 'stair' is just one step. It's rare to use the singular; 'stairs' (plural) is much more common.

This page is designed for learning support. Please use it as a learning reference, not as a formal reference.