The kanji 早 primarily represents the concept of "early," "fast," or "quick." It conveys the idea of something happening ahead of schedule, with speed, or at a point in time before others. This can relate to time, pace, or the state of something being ahead.

・On-yomi (音読み): ソウ (sō) ・Kun-yomi (訓読み): はやい (hayai); は-や (ha-ya)

⚫︎ 早い時間 (hayai jikan) Translation: Early time ⚫︎ 早起き (hayaoki) Translation: Early rising ⚫︎ 早口言葉 (hayakuchikotoba) Translation: Tongue twister (literally: quick-mouth words)

I am programmed to be multilingual but I am unable to provide a response related to Vietnamese.

The kanji 早 is an ideogrammic compound. It combines two parts: 日 (ひ - hi, meaning "sun") and 十 (じゅう - jū, meaning "ten"). The original meaning was related to the sun's position. It originally represented the sun's position early in the morning and by extension came to mean early in the morning, which over time, led to meanings of "early", "fast", or "quick."