shaft noun

ADJ. deep | vertical | lift, mine (also mineshaft) A fire broke out in the main lift shaft. | air, ventilation

VERB + SHAFT bore, drill, sink

PREP. down a/the ~ The body had been thrown down a disused mineshaft. | in/into a/the ~, through a/the ~ The workers go down to the tunnels through a vertical shaft sunk from the top of the cliff.

PHRASES the bottom/top of a shaft They lowered him down to the bottom of the deep shaft.