栽培
zāipéi · HSK 7
cultivate
🌱 栽 (plant a seedling) + 培 (bank up soil around roots) = cultivate and foster
栽 zāi is to set a young plant in the ground; 培 péi is heaping earth around its base so it takes hold. Together they cover both literal gardening and the figurative sense of grooming or training a person.
栽 — plant 𢦏 (phonetic) + tree 木
A semantic-phonetic compound: 木 (tree/plant) gives the meaning, while 𢦏 (zāi) supplies the sound. Originally referred to planting saplings or seedlings in soil, and by extension came to mean 'to plant, cultivate, or grow' more generally, as in 栽培 (to cultivate).