2. (v. t.) To join or add, as a smaller thing to a greater.
3. (v. t.) To attach or connect, as a consequence, condition, etc.; as, to annex a penalty to a prohibition, or punishment to guilt.
4. (v. i.) To join; to be united.
5. (n.) Something annexed or appended; as, an additional stipulation to a writing, a subsidiary building to a main building; a wing.