1.  Headdress. [1913 Webster]

2.  Apparatus above ground at the mouth of a mine or deep well. [1913 Webster]

acid head, ax head, axe head, bevel gear, bonnet head, chafing gear, change gear, clash gear, club head, cow's head, crowned head, cylinder head, death's head, department head, differential gear, dragon's head, epicyclic gear, epicyclic gear train, false dragon head, first gear, fishing gear, flower head, foul-weather gear, from head to toe, gear, gear case, gear lever, gear mechanism, gear to, gear up, gear wheel, golf-club head, hash head, head, head ache, head and shoulders above, head blight, head cabbage, head cabbage plant, head cold, head count, head covering, head crash, head for the hills, head game, head gasket, head gate, head home, head honcho, head hunter, head lettuce, head lice, head linesman, head louse, head nurse, head of hair, head of household, head of state, head off, head over heels, head over heels in, head register, head restraint, head rhyme, head sea, head shop, head smut, head start, head teacher, head tone, head trip, head up, head voice, head wind, head word, heels over head, high gear, hit the nail on the head, human head, hydrostatic head, in gear, in the head, irreversible steering gear, landing gear, level head, low gear, magnetic head, medusa's head, meet head on, nominal head, out of gear, pill head, pinion and ring gear, pitot head, planet gear, planetary gear, pope's head, pudding head, pumpkin head, read/write head, reduction gear, rotor head, running head, second gear, snake's head fritillary, spread head, spur gear, stable gear, stagger head, staggered head, steering gear, sun gear, swelled head, talking head, third gear, torsion head, trail head, turk's head, wedge gear, worm gear