If you lead a group of people, you walk or ride in front of them.

If you lead someone to a particular place or thing, you take them there.

If a road, gate, or door leads somewhere, you can get there by following the road or going through the gate or door.

If you are leading at a particular point in a race or competition, you are winning at that point.

If you have the lead or are in the lead in a race or competition, you are winning.

Someone's lead over a competitor at a particular point in a race or competition is the distance, amount of time, or number of points by which they are ahead of them.

If one company or country leads others in a particular activity such as scientific research or business, it is more successful or advanced than they are in that activity.

If you lead a group of people, an organization, or an activity, you are in control or in charge of the people or the activity.

If you give a lead, you do something new or develop new ideas or methods that other people consider to be a good example or model to follow.

You can use lead when you are saying what kind of life someone has. For example, if you lead a busy life, your life is busy.

If something leads to a situation or event, usually an unpleasant one, it begins a process which causes that situation or event to happen.

If something leads you to do something, it influences or affects you in such a way that you do it.

If you say that someone or something led you to think something, you mean that they caused you to think it, although it was not true or did not happen.

If you lead a conversation or discussion, you control the way that it develops so that you can introduce a particular subject.

You can say that one point or topic in a discussion or piece of writing leads you to another in order to introduce a new point or topic that is linked with the previous one.

A lead is a piece of information or an idea which may help people to discover the facts in a situation where many facts are not known, for example in the investigation of a crime or in a scientific experiment.

The lead in a play, film, or show is the most important part in it. The person who plays this part can also be called the lead.

A dog's lead is a long, thin chain or piece of leather which you attach to the dog's collar so that you can control the dog.

A lead in a piece of equipment is a piece of wire covered in plastic which supplies electricity to the equipment or carries it from one part of the equipment to another.

The lead story or lead in a newspaper or on the television or radio news is the most important story.