Multiple realities
(covers information from several alternate timelines)
Recruit was a rank or title given, following the recruitment of a recently joined member of organization or armed forces.
Many Starfleet recruits received their training at Starfleet Command, where they would walk past pictures of famous Starfleet captains. Travis Mayweather was a recruit in the late 2140s. (ENT: "Rogue Planet")
In 2153, Captain Jonathan Archer likened Commander Charles Tucker's recent behavior regarding a Vissian cogenitor to the actions of a "first-year recruit." (ENT: "Cogenitor")
In 2255 of the alternate reality, Captain Pike recruited James T. Kirk to enlist into Starfleet at Riverside, Iowa. This was a surprise to Kirk, who told Pike he must have been way behind on his recruiting quota for the month. (Star Trek)