芯 - wick

wick; marrow; staple (for stapler); (pencil) lead; stuffing; pith

pencil lead case (for a mechanical pencil)

cardboard tube

lead pointer (for a clutch pencil); lead sharpener

thick obi sash; sash padding

staple (for a stapler)

mechanical pencil lead

lamp wick

Chinese water spinach (Ipomoea aquatica); ong choy; kang kong; water morning glory; water convolvulus; swamp cabbage; hung tsai; rau muong; pak boong; swamp morning-glory

spare pencil lead; pen refill (cartridge); replacement wick (e.g. of a lantern)

lead of a pencil

padding; lining; foundation