A mark used by an author or editor to indicate where something is to be inserted into a text.

Roget 53: incompleteness etc. adj.; deficiency, short measure; shortcoming etc. 304; insufficiency etc. 640; imperfection etc. 651; immaturity etc. (nonpreparation) 674; half measures.    [part wanting] defect, deficit, defalcation, omission; caret; shortage; interval etc. 198; break etc. (discontinuity) 70; noncompletion etc. 730; missing link.    missing piece, missing part, gap, hole, lacuna.    ... show more