list of synonyms of word annual

• yearly
• time period
• period of time
• period (related term)

• one-year
• biennial (antonym)
• perennial (antonym)

• plant (generic term)
• flora (generic term)
• plant life (generic term)

• yearly
• yearbook
• reference book (generic term)
• reference (generic term)
• reference work (generic term)
• book of facts (generic term)