"Eager" is an adjective that can have several meanings depending on the context:
1. Desiring or wanting something very much: If someone is eager for something, they are very anxious to have it or to do it.
Example: She was eager to see the new movie.
2. Willing to do something without being asked: This refers to a readiness or enthusiasm to take action or participate.
Example: He is eager to help out with the project.
3. Done with enthusiasm and speed: This can describe a person or an action that is done with a lot of energy and without delay.
Example: The dog was eager to go for a walk.
4. In computing: In the context of programming, "eager" can refer to a property of a lazy evaluation strategy where the computation is done immediately, rather than being deferred until it is needed.
Example: Some programming languages allow for eager evaluation of expressions.
5. In biology: In some biological contexts, "eager" might refer to a state of readiness or anticipation, such as a cell being eager to divide or a person being eager to reproduce.
The exact meaning of "eager" should be determined by the context in which it is used.