植民地
しょくみんち · shokuminchi · JLPT N1 · noun
colony
🏝️ 植民地 = 植民 (settle, plant people) + 地 (land): land settled by outsiders
植民 means to settle people in new territory, from 植 (plant) and 民 (people). Add 地 (land) and you get the land they settle.
地 — earth 土 + 也 (phonetic)
地 is a semantic-phonetic compound. The left component 土 means 'earth' or 'soil' and gives the meaning, while 也 on the right hints at the pronunciation. Originally referring to the ground or land, it broadened to mean 'place,' 'region,' and 'territory.'