The kanji 感 primarily conveys the idea of "feeling," "sensation," "emotion," or "impression." It signifies the act of experiencing something emotionally or through the senses. It can also refer to the ability to perceive or understand something. The core concept is about an internal response to an external stimulus or situation.

・On-yomi (音読み): カン ・Kun-yomi (訓読み): かん（じる） - kan（jiru）

⚫︎感謝（かんしゃ） Translation: gratitude; appreciation ⚫︎感動（かんどう） Translation: being moved; being impressed; emotion ⚫︎予感（よかん） Translation: premonition; presentiment

The kanji 感 is a phono-semantic compound (形声文字, けいせいもじ). The left side is a component of radical 心（こころ）meaning "heart" or "mind". The right side provides the phonetic element 咸（かん）which originally depicted the meaning of "all" or "every". The combination suggests the idea of "all the heart" or the heart being filled with something. Over time, it evolved to represent the concept of emotion, feeling, or impression.