haystack (also hayrick)

n 1 large pile of hay firmly packed for storing, with a pointed or ridged top （捆扎妥当便於贮存的）大乾草垛（顶端呈尖形或脊形）. 2 (idm 习语) a needle in a haystack => needle.

have...to do with, have/gain access to, haven, haver, haversack, havoc, haw, Hawaii, hawk, hawk-eyed, hawker, hawkish, hawkishness, hawser, hawthorn, hay, hay fever, hay-fork, hay-maker, haymaking, haywire, hazard, hazardous, hazardously, haze, hazel, hazel-nut, hazily, haziness, hazy, HB, HDL cholesterol, he, he'd, he'll, he's, he-, he-man, head, head cheese,