This character is a Other Letter and is mainly used in the Hangul script.
The glyph is a compatibility version of the glyph Glyph for U+1112Hangul Choseong Hieuh. Its East Asian Width is wide. In bidirectional text it is written from left to right. When changing direction it is not mirrored. U+314E offers a line break opportunity at its position, except in some numeric contexts. The glyph can be confused with one other glyph.
The Wikipedia has the following information about this codepoint:
Hieut (character: ㅎ; Korean: 히읗; RR: hieut) is a consonant letter (jamo) of the Korean Hangeul alphabet. The Unicode for ㅎ is U+314E. It has two pronunciation forms, [h] at the beginning of a syllable and [t̚] at the end of a syllable. After vowels or the consonant ㄴ it is semi-silent.
It sounds like [h] in an initial or (total or full) onset position (하), intervowel position (partial onset (아하) or coda with a previous vowel in the same syllable block and followed by an onset vowel from another block (아[...]아앟아) or pseudonset (앟아)) and in a coda following a consonant (받침) before an onset vowel in the next syllable (않아). It assimilates via aspiration codas before plosive consonants; if ㅎ is a full coda (the end of the speech temporarily or finally) or batchim, it would sound like [t̚] (앟 at).