1. A year that is not a leap year
   - common year

Type of: twelvemonth, year, yr

• archpriest
• archway
• Arcidae
• arciform
• arcminute
• arco
• arcsec
• arcsecant
• arcsecond
• arcsin
• arcsine
• arctan
• arctangent
• arctic
• Arctic Archipelago
• Arctic char
• Arctic Circle
• Arctic fox
• Arctic ground squirrel
• Arctic hare
• arctic moss
• Arctic mouse-ear
• Arctic Ocean
• arctic poppy
• arctic skua