caret
    n 1: a mark used by an author or editor to indicate where
         something is to be inserted into a text

hawkbill \hawk"bill`\, hawksbill \hawks"bill`\(-b[i^]l`), n.
   (Zool.)
   A sea turtle (Eretmochelys imbricata), which yields the
   best quality of tortoise shell; -- called also caret.

   Syn: hawksbill turtle, hawkbill, tortoiseshell turtle,
        Eretmochelys imbricata.
        [1913 Webster]

Caret \Ca"ret\ (k[=a]"r[e^]t or k[a^]r"[e^]t), n. [L. caret
   there is wanting, fr. carere to want.]
   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.
   [1913 Webster]

Caret \Ca`ret"\, n. [F., a species of tortoise.] (Zool.)
   The hawkbill turtle. See Hawkbill.
   [1913 Webster]

caret

   ^

   Common: hat; control; uparrow; caret; ITU-T: circumflex.
   Rare: chevron; INTERCAL: shark (or shark-fin); to the ("to
   the power of"); fang; pointer (in Pascal).