1) Act of joining up 2) An act of enlisting 3) Army hitch 4) Duty tour 5) Hitch 6) Period 7) Period of time 8) Term of enlistment 9) The act of enlisting 10) Time period 11) Tour 12) Tour of duty 1) Hitch 2) Joining 3) Recruitment 
• (n.) The writing by which an enlisted man is bound. • (n.) The act or enlisting, or the state of being enlisted; voluntary enrollment to serve as a soldier or a sailor.
En·list'ment noun 1. The act or enlisting, or the state of being enlisted; voluntary enrollment to serve as a soldier or a sailor. 2. The writing by which an enlisted man is bound. 
[n] - a period of time spent in military service
noun the act of enlisting (as in a military service)
the period of time for which one is committed to military service. · an act of enlisting.
the act of enlisting (as in a military service)