head / heading / spherical object, e.g. bulb, knob / top portion, front, main part / heads (of coin)

scapegoat

per capita

per capita

headache / care

small round or oval-shaped unit of a concrete thing, e.g.; head (of fruit or vegetable), piece (of fruit), berry, nut, kernel / small round or oval-shaped unit of a concrete thing, e.g.; chunk, granule, bead, ball, nugget / small roundish object taken as an exemplar of a thing: piece, head / countable individual of a class / nub of the matter