Source : Webster's Revised Unabridged Dictionary (1913)

Tee \Tee\, n.
   The letter T, t; also, something shaped like, or resembling
   in form, the letter T.

Tee \Tee\, v. t. [imp. & p. p. {Teed}; p. pr. & vb. n.
   {Teeing}.] (Golf)
   To place (the ball) on a tee.

Tee \Tee\, n. [Cf. Icel. tj[=a] to show, mark.]
   (a) The mark aimed at in curling and in quoits.
   (b) The nodule of earth

Tee \Tee\, n.
   A short piece of pipe having a lateral outlet, used to
   connect a line of pipe with a pipe at a right angle with the
   line; -- so called because it resembles the letter {T} in
   shape.

Source : WordNet®

tee
     n 1: the starting place for each hole on a golf course; "they
          were waiting on the first tee" [syn: {teeing ground}]
     2: support holding a football on end and above the ground
        preparatory to the kickoff [syn: {football tee}]
     3: a short peg put into the ground to hold a golf ball off the
        ground [syn: {golf tee}]

tee
     v 1: place on a tee; "tee golf balls" [syn: {tee up}]
     2: connect with a tee; "tee two pipes"

Source : Free On-Line Dictionary of Computing

tee
     
         A {Unix} command which copies its
        {standard input} to its {standard output} (like {cat}) but
        also to a file given as its argument.  tee is thus useful in
        {pipeline}s of {Unix} commands (see {plumbing}) where it
        allows you to create a duplicate copy of the data stream.
        E.g.
     
        	egrep Unix Dictionary | tee /dev/tty | wc -l
     
        searches for lines containing the string "Unix" in the file
        "Dictionary", prints them to the terminal (/dev/tty) and
        counts them.
     
        {Unix manual page}: tee(1).
     
        [{Jargon File}]
     
        (1996-01-22)