say it: uh-LEH-groh
allegro is a noun, adjective and adverb meaning "a brisk and lively tempo". It carries 4 recorded senses.
a brisk and lively tempo
a musical composition or musical passage to be performed quickly in a brisk lively manner
(of tempo) fast
in a quick and lively tempo
“play this section allegro”
music
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for allegro come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.