Definition of: attach

(ə·tach′) v.t.
1. To make fast to something; affix; fasten on.
2. To connect or join on as a part of something: He attached himself to the expedition.
3. To add or append, as a word or signature.
4. To attribute; add as appropriate to: to attach great importance to the outcome of an event.
5. Law To secure for legal jurisdiction; seize or arrest by legal process: to attach an employee's salary.
6. Mil. To allocate, as personnel, units, or materiel, to a military organization temporarily or as a non-integral part: The regiment attached a medical officer.
7. Obs. To seize.
—v.i.
8. To be united in sympathy or affection: with to: to be attached to someone out of sympathy.
9. To belong, as a quality or circumstance; be incidental to: with to: Much interest attaches to this opinion. See synonyms under ADD, UNITE. [<OF atachier < a- to ( <L ad-) + tache nail <Gmc. Related to ATTACK.]
—at·tach′a·ble adjective