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general::
noun 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. 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.
Oxford Collocations Dictionary