加油站
jiāyóuzhàn · HSK 4
gasoline station
⛽ 加 (add) + 油 (oil) + 站 (station) = add-oil-station
加 means add, 油 means oil/fuel, and 站 means station or stop. Together they literally name the place where you add fuel. The same phrase 加油 also doubles as a cheer meaning keep going.
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.
站 — 立 (stand) + 占 (zhàn, phonetic)
A semantic-phonetic compound: 立 'to stand' gives the meaning, while 占 supplies the sound zhàn. Originally meaning 'to stand upright,' it later extended to 'a place where one stops or stands,' giving modern senses like station or stop.