The kanji 同 primarily conveys the meaning of "same," "alike," "equal," or "together." It implies similarity, agreement, or a shared characteristic between two or more things or people. It suggests a lack of difference or distinction.

・On-yomi (音読み): ドウ ・Kun-yomi (訓読み): おな（じ）

⚫︎同じ学校 Translation: Same school. ⚫︎同意する Translation: To agree. ⚫︎共同で作業する Translation: To work together.

The kanji 同 is a phono-semantic compound (形声文字). The phonetic component is 冂 (kei), and the semantic component is 口 (kuchi, mouth). 冂 represents "a wide area", and 口 represents "mouth". The original meaning of the character was "to gather together" or "to have the same opinion". Over time, it developed the meaning of "same" or "alike" by association with people having the same thoughts or speaking the same words.