WordReference Random House Unabridged Dictionary of American English © 2026
alt  (alt)USA pronunciation [Music.]
adj. 
  1. Music and Dancehigh.

n. 
  1. Music and Dance in alt, in the first octave above the treble staff.
  • Latin altum, noun, nominal use of neuter of altus high
  • Provencal
  • 1525–35

alt-, 
  1. var. of alti- before a vowel:altazimuth.

alt., 
    1. alteration.
    2. alternate.
    3. altitude.
    4. alto.

'alt.' also found in these entries (note: many are not synonyms or translations):
alt - altazimuth - althorn - alti- - altissimo - cuckold - dieb. alt. - doomster - exalt - old - ribald

Forum discussions with the word(s) "alt." in the title:


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