to destroy an aircraft or make an aircraft, bird, etc. fall to the ground by shooting at it:

to become slower, or to make someone or something become slower:

to write something that someone has said or written so that you can remember it

to win a lot of money:

to write something that someone has said or written so that you can remember it

If you nail down an arrangement or decision, you decide and agree to the details of it:

to make a person feel worried and unhappy because of problems, responsibilities, and duties:

to discover, especially where a thing or person is, either unexpectedly or by searching, or to discover where to get or how to achieve something:

If you take words, information, or ideas from another person or piece of work, you use or develop them in some way:

to have sex or a sexual relationship with someone:

a small piece of paper with information on it about a product or event

to stop something touching or harming someone or something:

to stop, or to stop doing something:

to not include something or someone on a list:

If writing or information refers to someone or something, it relates to that person or thing:

If a thought or idea occurs to you, it comes into your mind:

If a situation descends into a particular state, it becomes worse:

to be talking or thinking a lot about something that you have enjoyed or found exciting:

to get rid of something or stop using something:

to tell someone that you cannot see them or do something for them, or to stop someone from doing something, until a later time: