an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
a chattering or flighty, light-headed person.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
a gadget; dingus; thingumbob.
the offspring of a zebra and a donkey.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
1657, "to make real, to give substance to," from Mod.L. substantiatus, pp. of substantiare, from L. substantia (see substance). Meaning "to demonstrate or prove" is attested from 1803.