Definition of Annual

Adjective: annual an-y(oo-)ul

(botany) completing its life cycle within a year
"a border of annual flowering plants";
- one-year
Occurring or payable every year
"an annual trip to Paris"; "annual income";
- yearly

Noun: annual an-y(oo-)ul

(botany) a plant that completes its entire life cycle within the space of a year
A reference book that is published regularly once every year
- yearly, yearbook