U+3299 "㊙" Circled Ideograph Secret Unicode Character

Unicode Version 17.0

U+3299 "㊙" Circled Ideograph Secret is a CJK (Chinese, Japanese, and Korean) symbol consisting of the kanji or hanzi for "secret" (秘) enclosed within a circle, and it is officially part of the "Enclosed CJK Letters and Months" block. In East Asian contexts, particularly in Japan and China, this pictogram is commonly used as an ideographic indicator to mark information, items, or content as confidential, classified, or private, often appearing on official documents, packaging, or digital interfaces to denote secrecy or restricted access. Its design and function are directly related to the concept of a "secret" stamp or label rather than representing a spoken word, making it a visual shorthand for privacy and discretion in textual communication systems.

General Properties

Code Point U+3299
Version Added 1.1
Name Circled Ideograph Secret
Block Enclosed CJK Letters and Months
General Category Other Symbol
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Circle
Decomposition Mapping "秘" U+79D8 CJK Unified Ideograph-#

Encodings

HTML Decimal Encoding ㊙
HTML Hex Encoding ㊙
UTF-8 Encoding 0xE3 0x8A 0x99
UTF-16 Encoding 0x3299
UTF-32 Encoding 0x00003299
C/C++/Java Escape \u3299

Unicode Properties

NFC Quick Check Yes
NFD Quick Check Yes
Numeric Type None
Numeric Value NaN
Line Break Ideographic
East Asian Width Wide
Changes When NFKC Casefolded Yes
NFKC Casefold "秘" U+79D8 CJK Unified Ideograph-#
NFKC Simple Casefold "秘" U+79D8 CJK Unified Ideograph-#
Script Common
Script Extensions Han
Indic Syllabic Category Other
Vertical Orientation Upright
Grapheme Base Yes
Grapheme Cluster Break Other
Word Break Other
Sentence Break Other
Emoji Yes
Extended Pictographic Yes