noun
incense stick
A thin stick of incense that burns slowly, used in Buddhist rituals, at graves, or for fragrance.
仏壇に線香をあげる。
I offer an incense stick at the Buddhist altar.
線香の香りが部屋に広がった。
The scent of incense filled the room.
お香 is a broader term for incense in general, including sticks, cones, and powders, while 線香 specifically refers to the thin stick form.
Compound of 線 (line, thread) and 香 (incense, fragrance), referring to the thin stick shape.