If you cover something, you place something else over it in order to protect it, hide it, or close it.

If one thing covers another, it has been placed over it in order to protect it, hide it, or close it.

If one thing covers another, it forms a layer over its surface.

To cover something with or in something else means to put a layer of the second thing over its surface.

If you cover a particular distance, you travel that distance.

To cover someone or something means to protect them from attack, for example by pointing a gun in the direction of people who may attack them, ready to fire the gun if necessary.

Cover is protection from enemy attack that is provided for troops or ships carrying out a particular operation, for example by aircraft.

Cover is trees, rocks, or other places where you shelter from the weather or from an attack, or hide from someone.

An insurance policy that covers a person or thing guarantees that money will be paid by the insurance company in relation to that person or thing.

Insurance cover is a guarantee from an insurance company that money will be paid by them if it is needed.

If a law covers a particular set of people, things, or situations, it applies to them.

If you cover a particular topic, you discuss it in a lecture, course, or book.

If journalists, newspapers, or television companies cover an event, they report on it.

If a sum of money covers something, it is enough to pay for it.

A cover is something which is put over an object, usually in order to protect it.

The covers on your bed are the things such as sheets and blankets that you have on top of you.

The cover of a book or a magazine is the outside part of it.

Something that is a cover for secret or illegal activities seems respectable or normal, and is intended to hide the activities.

If you cover for someone who is doing something secret or illegal, you give false information or do not give all the information you have, in order to protect them.

If you cover for someone who is ill or away, you do their work for them while they are not there.

To cover a song originally performed by someone else means to record a new version of it.

A cover is the same as a cover version .

To blow someone's cover means to cause their true identity or the true nature of their work to be revealed.

If you break cover, you leave a place where you have been hiding or sheltering from attack, usually in order to run to another place.

If you take cover, you shelter from gunfire, bombs, or the weather.

If you are under cover, you are under something that protects you from gunfire, bombs, or the weather.

If you do something under cover of a particular situation, you are able to do it without being noticed because of that situation.

If you cover your back or cover your rear, you do something in order to protect yourself, for example against criticism or against accusations of doing something wrong.

Cover your ass means the same as cover your back .