a daily allowance, usually for living expenses while traveling in connection with one's work or being employed at a distance from one's home: a per diem for lawmakers while the legislature is in session.
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 scrap or morsel of food left at a meal.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.