- (linguistics) In contemporary Korean dialectology, used to represent an archiphoneme which tenses the subsequent consonant.
- (obsolete) Used for the same purpose in New Korean Orthography, a brief-lived (1948—1954) spelling reform in North Korea.
From ㅇ (null consonant), with an additional stroke.
- Transcribes [ʔ] in Chinese. This was not a sound in Middle Korean.
- Used to represent an archiphoneme which tenses the subsequent consonant.
- Called 여린히읗 (yeorinhieut) in Modern Korean.