1 stairs steps inside a building
ADJ. steep | wide | narrow | rickety | main | back
QUANT. flight We went up three flights of stairs.
VERB + STAIR ascend, climb, go/run, etc. up, mount | descend, go/run, etc. down | take, use Take the back stairs.
STAIR + VERB lead to sth | creak
STAIR + NOUN rod The carpet was held in place by brass stair rods. | gate
PREP. under the ~ a cupboard under the stairs | ~ (down/up) to the stairs to the third floor
PHRASES the bottom/foot/head/top of the stairs, take the stairs two, etc. at a time He rushed up to the bedroom, taking the stairs two at a time.
2 one step
ADJ. top | bottom
STAIR + VERB creak The third stair creaked as I stepped on it.
PREP. on/the a ~ He sat waiting on the bottom stair.