Perennial (adjective)
definition:
recurring again and again
example:
"perennial efforts to stipulate the requirements"
Perennial (adjective)
definition:
lasting three seasons or more
example:
"the common buttercup is a popular perennial plant"
Perennial (adjective)
definition:
lasting an indefinitely long time
Perennial (noun)
definition:
a plant lasting for three seasons or more
example:
"We planted perennials in our garden to save us re-planting the following year."