天敌 (tiān dí): Natural enemy (Noun) — Meaning & Stroke Order

Cats are the natural enemies of mice.

This new pesticide is not a natural enemy to all insects, only targeting specific pests.

In business competition, they regard each other as natural enemies, yet they also grow through mutual checks and balances.

For pests, ladybugs are their natural enemies, effectively controlling pest populations.

For night owls, the morning alarm clock is practically their natural enemy.