[1] : The Collaborative International Dictionary of English v.0.48

sonata \sona"ta\, n. it., fr. it.  l. sonare to sound. see
   sound a noise. mus.
   an extended composition for one or two instruments,
   consisting usually of three or four movements; as,
   beethoven's sonatas for the piano, for the violin and piano,
   etc.
   1913 webster

   note: the same general structure prevails in symphonies,
         instrumental trios, quartets, etc., and even in
         classical concertos. the sonata form, distinctively,
         characterizes the quick opening movement, which may
         have a short, slow introduction; the second, or slow,
         movement is either in the song or variation form; third
         comes the playful minuet or the more modern scherzo;
         then the quick finale in the rondo form. but both form
         and order are sometimes exceptional.
         1913 webster
see also:
sound 

[2] : WordNet (r) 2.0

sonata
     n : a musical composition of 3 or 4 movements of contrasting
         forms

[3] : Moby Thesaurus II by Grady Ward, 1.0

34 moby thesaurus words for "sonata":
   nachtmusik, absolute music, adaptation, air varie, aleatory,
   aleatory music, arrangement, chamber music, chamber orchestra,
   composition, descant, electronic music, etude, exercise,
   harmonization, incidental music, instrumental music, invention,
   nocturne, opus, orchestration, piece, production, program music,
   ricercar, score, sonatina, string orchestra, string quartet, study,
   theme and variations, trio, variation, work

[4] : The Free On-line Dictionary of Computing (27 SEP 03)

sonata
     
         the code name for the major mac os
        release due in mid-1999.
     
       
     http://devworld.apple.com/mkt/informed/appledirections/mar97/roadmap.html.
     
        1997-10-15
     
     
see also:
mac os lt;http://devworld.apple.com/mkt/informed/appledirections/mar97/roadmap.htmlgt; 

Sonata >> S Words
Sonata, definition of term: Sonata
sonata_pag1.html

Sonata Form >> S Words
Sonata Form, definition of term: Sonata Form
sonata+form_pag1.html