When you push something, you use force to make it move away from you or away from its previous position.

If you push through things that are blocking your way or push your way through them, you use force in order to move past them.

If an army pushes into a country or area that it is attacking or invading, it moves further into it.

To push a value or amount up or down means to cause it to increase or decrease.

If someone or something pushes an idea or project in a particular direction, they cause it to develop or progress in a particular way.

If you push someone to do something or push them into doing it, you encourage or force them to do it.

If you push for something, you try very hard to achieve it or to persuade someone to do it.

If someone pushes an idea, a point, or a product, they try in a forceful way to convince people to accept it or buy it.

When someone pushes drugs, they sell them illegally.

If you say that someone is pushing it, you mean that their actions or claims are rather excessive or risky.

If you get the push or are given the push, you are told that you are not wanted any more, either in your job or by someone you are having a relationship with.