understudy understrung • understuff · · · Info · Definitions · Synonyms · Characters · · understudy · · Text Latin · · Script 10 · · Length Definitions · · · (noun) an actor able to replace a regular performer when required. Synonyms: standby. · · Noun Definition 1 (verb) be an understudy or alternate for a role. Synonyms: alternate. · · Verb Definition 1 Synonyms · · · standby · · Synonym 1 alternate · · Synonym 2 Characters · · d latin small letter d U+0064 e latin small letter e U+0065 n latin small letter n U+006E r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075 y latin small letter y U+0079