Ready can function as an adjective, noun or verb.
Ready is most often used as an adjective to describe someone or something that is fully prepared.
In my house, dinner is ready by 6:00 o'clock.
I am ready to sleep.
Ready can also be used as a verb when we prepare ourselves for something for an activity or purpose.
She readied herself for the party.
We readied the room for the guests.
In informal English, ready is used as a noun to refer to available cash. When you hear someone saying, "I'm short of the ready right now", it means they don't have money available for immediate use.
在非正式英语中，ready用作名词指可用的现金。当听到有人说，"I'm short of the ready right now"，那意味着他们没有可以马上使用的钱。
Ready Money: When you have ready money, it means that you have cash funds that are immediately at hand to spend.
Ready Money：当你有 ready money时，这意味着你手头上有可以立刻使用的钱财。
She is a high maintenance girl, so if you want to date her, make sure you have a lot of ready money.
Rough and ready: Something is rough and ready when it lacks refinement or sophistication, but it is ready for use.
Rough and ready:当某物缺少精致打磨，就是rough and ready，即虽然马马虎虎，但勉强过得去，可以使用
Our house is a little rough and ready, but we can move in there if we have to.
When one is good and ready: It means one is completely ready.
如果有人是good and ready：那么就意味着他已经完全准备好了。
We will leave when I'm good and ready, and not a minute sooner.
Ready, willing, and able: When someone is ready, willing and able, it means that he is very willing to do something.
Ready, willing, and able：当某人ready, willing, and able时，这意味着他非常愿意做某事。
If you need help with your project, just let me know. I'm ready, willing and able.
Ready to drop: To be completely exhausted, fatigued or worn out.
Ready to drop：筋疲力尽、极度疲乏
I was ready to drop after working overtime.
Ready to roll: Eager and prepared to take action or ready to leave a certain place.
Ready to roll：急切的准备采取行动或准备离开某个地方。
I'm ready to roll! Let's go dancing.
Ready for the off: This expression is used to describe a person who is ready to leave a certain place.
Ready for the off：这个表达用来表述某人准备离开某个地方
I already have my airline ticket and I have booked a hotel. I am ready for the off.
Be more than ready to do something: Be completely ready to do something.
Be more than ready to do something：完全准备好去做某事。
If you hire me, I am more than ready to start working.