In the Vinony graph
Vinony's link graph records 56 inbound references to O, and connects out to Hangul, Unicode and UTF-8.
It sits within the topics Hangul jamo and Vowel letters.
Vinony links it to 12 Wikipedia language editions.
Connections
Hangul
Entity
Unicode
Entity
UTF-8
Entity
Revised Romanization of Korean
Entity
McCune–Reischauer
Entity
Jejuan
Entity
ㄱ
Entity
Hangul Syllables
Entity
ㄴ
Entity
ㄷ
Entity
ㄹ
Entity
Hangul Jamo
Entity
ㅅ
Entity
ㅇ
Entity
ㅁ
Entity
Hangul Compatibility Jamo
Entity
ㅂ
Entity
list of hangul jamo
Entity
Halfwidth and Fullwidth Forms
Entity
ㅈ
Entity