noun: (medicine) Initialism of stretched penile length.
noun: (Scouting, US) Initialism of senior patrol leader. [(Scouting, US) A youth Scout, elected by fellow Scouts, who holds the highest amount of authority in their troop in terms of youth members.]
noun: (soccer) Initialism of Scottish Premier League, the highest division of Scottish professional football.
noun: (software) Initialism of Sun Public License.
noun: (software, PHP) Initialism of Standard PHP Library.
adjective: Abbreviation of special. [Distinguished by a unique or unusual quality.]