CAVEAT, practice. That hebeware. Caveat is the name of a notice given by a party having an interest, to some officer, not to do an act, till the party giving the notice shall have been heard; as, a caveat to the register of wills, or judge of probate, not to permit a will to be proved, or not to grant letters of administration, until the party shall have been heard. A caveat is also frequently made to prevent a patent for inventions being issued. 1 Bouv. Inst. 71, 534; 1 Burn's Ecc. Law, 19, 263; Bac. Abr. Executors and Administrators, E 8; 3 Bl. Com. 246; Proctor's Pract. 68; 3 Bin. Rep. 314; 1 Siderf. 371 Poph. 133; Godolph. Orph. Leg. 258; 2 Brownl. 119; 2 Fonbl. Eq. book 4, pt. 2, c. 1, 3; Ayl. Parer. 145 Nelson's Ab. h. t.; Dane's Ab. c. 223, a. 15, 2, and a. 8, 22. See 2 Chit. Pr. 502, note b, for a form.