思

Phono-semantic compound:

心 (“heart, mind”) – semantic, indicating mental activity and feelings;

田 (“field”) – phonetic element, lending the sound 사.

Originally depicted the heart engaged in deep reflection, extending to the meanings of thinking, contemplating, and longing.

Semantic range:

- to think, to ponder, to reflect;

- to consider, to deliberate;

- to long for, to miss;

- figurative: intention, thought, idea.

사상 (思想) – thought, ideology

사려 (思慮) – consideration, prudence

사모 (思慕) – longing, yearning

사색 (思索) – contemplation, meditation

사유 (思惟/思惟) – thought, thinking

반성사 (反省思) – self-reflection