Nouns

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

Adjectives

(a)annual, one-yearcompleting its life cycle within a year“a border of annual flowering plants”
(s)annual, yearlyoccurring or payable every year“an annual trip to Paris”, “yearly medical examinations”, “annual (or yearly) income”