You use last in expressions such as last Friday ,last night, and last year to refer, for example, to the most recent Friday, night, or year.

The last event, person, thing, or period of time is the most recent one.

If something last happened on a particular occasion, that is the most recent occasion on which it happened.

The last thing, person, event, or period of time is the one that happens or comes after all the others of the same kind.

If you do something last, you do it after everyone else does, or after you do everything else.

If you are the last to do or know something, everyone else does or knows it before you.

Last is used to refer to the only thing, person, or part of something that remains.

You use last before numbers to refer to a position that someone has reached in a competition after other competitors have been knocked out.

You can use last to indicate that something is extremely undesirable or unlikely.

The last you see of someone or the last you hear of them is the final time that you see them or talk to them.

If an event, situation, or problem lasts for a particular length of time, it continues to exist or happen for that length of time.

If something lasts for a particular length of time, it continues to be able to be used for that time, for example because there is some of it left or because it is in good enough condition.

You can use last in expressions such as last the game ,last the course, and last the week, to indicate that someone manages to take part in an event or situation right to the end, especially when this is very difficult for them.

If you say that something has happened at last or at long last you mean it has happened after you have been hoping for it for a long time.

You use expressions such as the night before last ,the election before last and the leader before last to refer to the period of time, event, or person that came immediately before the most recent one in a series.

If someone breathes their last, they die.

You can use phrases such as the last but one, the last but two, or the last but three, to refer to the thing or person that is, for example, one, two, or three before the final person or thing in a group or series.

You use every last to emphasize that you are talking about all the people or things in a group or all the parts of something.

The expression last in, first out is used to say that the last person who started work in an organization should be the first person to leave it, if fewer people are needed.

You can use expressions such as the last I heard and the last she heard to introduce a piece of information that is the most recent that you have on a particular subject.

If you leave something or someone until last, you delay using, choosing, or dealing with them until you have used, chosen, or dealt with all the others.

If you see the last of someone, you do not expect to see them or deal with them again.

If you say that something goes on happening to the last, you mean that it happens throughout the whole of a book, film, or event.

If you say that someone is a particular kind of person to the last, you are emphasizing that they continue to be that kind of person.

You use expressions such as to the last detail and to the last man to indicate that a plan, situation, or activity includes every single person, thing, or part involved.