Definition of 'annual'
- a plant that completes its entire life cycle within the space of a year
- a reference book that is published regularly once every year
Synonyms: yearly yearbook
- occurring or payable every year; "an annual trip to Paris"; "yearly medical examinations"; "annual (or yearly) income"
- completing its life cycle within a year; "a border of annual flowering plants"
Antonyms: biennial two-year perennial