What is the meaning of Annual?

Happening once every year.

Of, for, or relating to a whole year, often as a recurring cycle; determined or reckoned by the year; accumulating in the course of a year; performed, executed, or completed over the course of a year. See also circannual.

Having a life cycle that is completed in only one growing season; e.g. beans, corn, marigold. See Annual plant in Wikipedia. Compare biennial, perennial.

Living or lasting just one season or year, as certain insects or insect colonies.

An annual publication; a book, periodical, journal, report, comic book, yearbook, etc., which is published serially once a year, which may or may not be in addition to regular weekly or monthly publication.

An annual plant; a plant with a life span of just one growing season; a plant which naturally germinates, flowers and dies in one year. Compare biennial, perennial.

A medical checkup taking place once a year.

A pantomime taking place once a year.

annual leave

annual.

Source: wiktionary.org