Definitions
1.nounA mound, pile, or stack of stored hay.
2.noun(canoeing) A standing wave in a rapid.
3.nounThe text string within which another string is searched for. (see: needle in a haystack)
4.nounA dish composed of a starchy food (rice, tortillas, crackers, etc.) topped by a protein (beans, cheese, meat, etc.) in combination with fresh vegetables, assembled on the plate by the diner.