‘锁住’ is a compound verb meaning ‘to lock up’ or ‘to hold fast/securely in place.’ It combines the character 锁 (suǒ), meaning ‘lock’ or ‘to lock,’ with 住 (zhù), a resultative complement indicating completion, stability, or cessation of movement. Together, they convey the idea of firmly securing something so it cannot move, open, or escape — whether physically (e.g., locking a door or cage) or figuratively (e.g., holding attention or emotions).

The word is commonly used in both literal and metaphorical contexts: securing objects, confining animals or people, or describing mental states like being ‘locked into’ a habit or thought pattern. It implies intentionality and effectiveness — if something is 锁住, it stays put. Unlike simple verbs like 锁 (to lock), 锁住 emphasizes the achieved state of being secured, not just the action.