成

Phono-semantic compound combining:

戊 (무) – the 5th of the Ten Heavenly stems (天干 tiāngān), providing meaning;

丁 (정) – the 4th of the Ten Heavenly Stems, providing sound.

In Chinese, it also has the numeric usage of “tenths”, e.g.

三成 = 30%

六成四 = 64%.

Its composition of 戊 and 丁 traditionally makes it 7 strokes, but the simplified 6-stroke form is widely used today and accepted in modern script standards.

Full (standard) form:

戊 (5 strokes) + 丁 (2 strokes) = 7 strokes total.

Simplified writing form:

Many modern fonts write 丁 in a single ㄱ-shaped stroke, reducing 成 to 6 strokes.

Explanation from the Korean Language Society (한국어문회):

“The original character 成 has 7 strokes.

When 丁 is written as a single ㄱ-shaped stroke, it counts as 6 strokes.

The 6-stroke version is the simplified form (속자).”

Modern new-style scripts officially recognize the simplified (6-stroke) form.