| 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 calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
Dry land, as opposed to the sea: “After our stormy voyage across the Atlantic Ocean, we were relieved to set foot on terra firma.” From Latin, meaning “firm (or solid) ground.”