本地 (běn dì) means 'local' as in 'this locality' — the place where you are or the area being referred to. It is very similar to 当地 (dāng dì), but 当地 often emphasizes 'that specific place' (e.g., the local area under discussion), while 本地 is more about 'here' or 'this place'. 本土 (běn tǔ) is more formal and often means 'domestic/native' (e.g., 本土文化 native culture).