noun.
A proofreading symbol (⁁) used to indicate where something is to be inserted in a line of printed or written matter.
The Century Dictionary and Cyclopedia
noun.
A name of the hawkbill sea-turtle, Eretmochelys imbricata.
noun.
A mark (∧) used in writing, in correcting printers' proofs, etc., to indicate the proper place of something that is interlined or written in the margin.
the GNU version of the Collaborative International Dictionary of English
noun.
The hawkbill turtle. See hawkbill.
noun.
A mark [^] used by writers and proof readers to indicate that something is interlined above, or inserted in the margin, which belongs in the place marked by the caret.