Synonyms: annual, yearbook, yearly
Definition: a reference book that is published regularly once every year
Similar words: book of facts, reference, reference book, reference work
Definition: a book to which you can refer for authoritative facts
Usage: he contributed articles to the basic reference work on that topic
Definition: occurring or payable every year
Usage: an annual trip to Paris; yearly medical examinations; annual (or yearly) income
Similar words: periodic, periodical
Definition: happening or recurring at regular intervals
Usage: the periodic appearance of the seventeen-year locust