Etymology: Middle English fot, from Old English fōt; akin to Old High German fuot foot, Latin ped-, pes, Greek pod-, pous
Date: before 12th century
1: the terminal part of the vertebrate leg upon which an individual stands 2: an invertebrate organ of locomotion or attachment; especially: a ventral muscular surface or process of a mollusk 3: any of various units of length based on the length of the human foot; especially: a unit equal to 1⁄3 yard and comprising 12 inches —plural foot used between a number and a noun <a 10-foot pole> —plural feet or foot used between a number and an adjective <6 feet tall> — see weight table 4: the basic unit of verse meter consisting of any of various fixed combinations or groups of stressed and unstressed or long and short syllables 5 a: motion or power of walking or running :step<fleet of foot>b:speed, swiftness<showed early foot> 6: something resembling a foot in position or use: as a: the lower end of the leg of a chair or table b (1): the basal portion of the sporophyte in mosses (2): a specialized outgrowth by which the embryonic sporophyte especially of many bryophytes absorbs nourishment from the gametophyte c: a piece on a sewing machine that presses the cloth against the feed 7foot pluralchiefly British:infantry 8: the lower edge (as of a sail) 9: the lowest part :bottom<the foot of the hill> 10 a: the end that is lower or opposite the head <the foot of the bed>b: the part (as of a stocking) that covers the foot 11footsplural but sing or plural in constr: material deposited especially in aging or refining :dregs 12footsplural:footlights
— at one's feet: under one's spell or influence
— foot in the door: the initial step toward a goal
— off one's feet: in a sitting or lying position
— on foot: by walking or running <tour the campus on foot>
— on one's feet1: in a standing position 2: in an established position or state 3: in a recovered condition (as from illness) <back on my feet> 4: in an extemporaneous manner : while in action <good debaters can think on their feet>
— to one's feet: to a standing position <brought the crowd to its feet>