Ready (adjective)

1. Prepared or available for use or action.
2. Prepared or willing to do something.
3. Done or made ready in advance.
4. Quick to respond or react to something.
5. Having all the necessary qualities or resources.

Origin:

Middle english: from old english rǣdlic "prepared, fit", from rǣd "advice" (in the sense "preparation"), based on rǣdan "advise".

Examples:

1. The team is ready to take on the challenge.
2. She was ready to leave the minute her boss told her to.
3. The party was ready and waiting for their guests.
4. He was always ready with a clever retort.
5. The country was ready to defend its interests.