The word “croak” has a couple of meanings in English:
1. **As a verb**: It primarily refers to the deep, hoarse sound made by frogs or some other animals. It can also describe a similar sound made by a person, often indicating difficulty in speaking or a rasping voice.
2. **Colloquially**: It can mean to die, often used informally (e.g., “He croaked last night”).
3. **As a noun**: “Croak” can refer to the sound itself that is produced by a frog or a similar sound.
Overall, “croak” can denote both a vocalization by animals and, in informal usage, a metaphorical expression related to death.