"perennial" in the noun sense
1. perennial
botany) a plant lasting for three seasons or more
"perennial" in the adjective sense
1. perennial
lasting three seasons or more
"the common buttercup is a popular perennial plant"
2. perennial
lasting an indefinitely long time suggesting self-renewal
"perennial happiness"
3. perennial, recurrent, repeated
recurring again and again
"perennial efforts to stipulate the requirements"
Source: WordNet® (An amazing lexical database of English)
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