to be attached, to stick, to be stained, to be turned on

💡 Nuance & Usage: This is an intransitive verb with multiple meanings. Common N4 uses include 'to stick/be attached' (例: 汚れが付く - dirt sticks/gets stained), 'to be acquired' (例: 習慣が付く - a habit is acquired), or 'to be turned on' (例: 電気が付く - the light turns on).