加油
jiāyóu · HSK 2
refuel
⛽ 加 (add) + 油 (oil) = add oil — refuel, or cheer someone on
Literally 'add oil', from refueling a vehicle. By extension it's a rallying cry — the Cantonese-origin shout of encouragement now ubiquitous across Chinese, telling someone to push harder.
加 — force 力 + mouth 口
加 is traditionally analyzed as a compound of 力 (strength) and 口 (mouth), suggesting boasting or exaggerating one's effort with words. From this it extended to the meaning 'to add' or 'increase'. Today it is used broadly for addition, both literal and figurative.
油 — water radical 氵 + 由 (yóu, phonetic)
油 is a phono-semantic compound. The 氵 radical signals a liquid, while 由 supplies the sound. Originally referring to a river name, it was extended to mean oil or fat — any thick, flowing liquid — which became its dominant modern sense.
jiā yóu · HSK 3
go for it!
⛽ 加 (add) + 油 (oil/fuel) = add fuel — cheer someone on
Literal compound: 加 jiā 'add' + 油 yóu 'oil/fuel'. Originated as a cheer at car races (refuel = push harder), now the standard encouragement shout — like English 'step on the gas' but used as 'go for it!'
加 — force 力 + mouth 口
加 is traditionally analyzed as a compound of 力 (strength) and 口 (mouth), suggesting boasting or exaggerating one's effort with words. From this it extended to the meaning 'to add' or 'increase'. Today it is used broadly for addition, both literal and figurative.
油 — water radical 氵 + 由 (yóu, phonetic)
油 is a phono-semantic compound. The 氵 radical signals a liquid, while 由 supplies the sound. Originally referring to a river name, it was extended to mean oil or fat — any thick, flowing liquid — which became its dominant modern sense.