アリの巣す

noun

anthill; ant nest; ant colony

Refers to the physical mound or the entire colony structure. Common in everyday and biological contexts.

• 庭にわにアリの巣すができた。

  An anthill has formed in the garden.

• アリの巣すを観かん察さつするのは面おも白しろい。

  Observing an ant colony is interesting.