noun
incense container
A small lidded container used to hold incense, often used in tea ceremony or incense ceremony (香道).
茶会では、香合から香木を取り出して香炉にくべる。
At a tea gathering, one takes incense wood from the incense container and places it in the incense burner.
香炉 is an incense burner or censer, while 香合 is the container for storing incense.
Compound of 香 (incense) and 合 (container). The exact historical derivation is uncertain, but the word is conventionally associated with incense ceremony utensils.