U+3280 "㊀" Circled Ideograph One Unicode Character

U+3280 "㊀" Circled Ideograph One is a CJK (Chinese, Japanese, Korean) symbol that represents the number one enclosed within a circle, often used as a decorative numeral or ordinal marker in East Asian contexts. It belongs to the Enclosed CJK Letters and Months block, and its design combines the character 一 (one) with a surrounding circle to create a concise, visually distinct glyph. This ideograph is commonly employed in lists, indexes, or signage to indicate the first item, and it also appears in traditional numbering systems for lunar calendar months or other sequential references in Chinese and Japanese writing.