The Collaborative International Dictionary of English v.0.48:

Tempo \Tem"po\, n. [It., fr. L. tempus. See Tense, n.] (Mus.)
   The rate or degree of movement in time.
   [1913 Webster]

   A tempo giusto (j[=oo]s"t[-o]) [It.], in exact time; --
      sometimes, directing a return to strict time after a tempo
      rubato.

   Tempo rubato. See under Rubato.
      [1913 Webster]

WordNet (r) 3.0 (2006):

tempo
    n 1: (music) the speed at which a composition is to be played
         [syn: tempo, pacing]
    2: the rate of some repeating event [syn: tempo, pace]

Moby Thesaurus II by Grady Ward, 1.0:

47 Moby Thesaurus words for "tempo":
   andante tempo, arrhythmia, beat, beating, cadence, compound time,
   drumming, duple time, flutter, heartbeat, heartthrob, largo,
   march tempo, measure, mixed times, momentum, pace, palpitation,
   pitapat, pitter-patter, presto, pulsation, pulse, rag, ragtime,
   rat-a-tat, rataplan, rate, rhythm, rubato, sextuple time,
   simple time, speed, staccato, syncopation, syncope, tempo rubato,
   three-quarter time, throb, throbbing, time, time pattern, timing,
   triple time, triplet, two-four time, waltz time



The Free On-line Dictionary of Computing (30 December 2018):

Tempo

    The original code name for Mac OS version
   8.

   (1997-10-15)


The Free On-line Dictionary of Computing (30 December 2018):

TEMPO

   A programming language with simple syntax and semantics
   designed for teaching semantic and pragmatic aspects of
   programming languages.

   ["TEMPO: A Unified Treatment of Binding Time and Parameter
   Passing Concepts in Programming Languages", N.D. Jones et al,
   LNCS 66, Springer 1978].