The kanji 長 primarily conveys the meaning of "long," "length," or "leader." It can refer to physical length, the duration of time, or a position of authority. The core concept is about something exceeding a certain point, whether in space, time, or status.

・On-yomi (音読み): チョウ (chou) ・Kun-yomi (訓読み): なが（い） (nagai - long), おさ（） (osa - leader, chief)

⚫︎長い道 Translation: Long road ⚫︎身長 Translation: Height (of a person) ⚫︎長年 Translation: Many years; a long time

The kanji 長 is an ideogram. It depicts a person with long hair. The original form of the character shows a person with flowing hair, indicating length or the "leader" who has experience (often implying seniority, hence "long" in experience). Over time, the character simplified to its current form, but the concept of "length" or "leader" remains core to its meaning.