Making small changes to something in order to make it as good or as effective as possible.

applying for an official document that gives someone who has invented something the legal right to make or sell that invention for a particular period of time, and prevents anyone else from doing so.

an effect or an influence.

Changes from one system to another or makes something do this.

Using new methods, or achieving new results.

too big to be carried or stored easily.

hanging or swinging without anything stopping it.

an extremely unpleasant experience, especially one that lasts for a long time.

the moment when you suddenly have a great idea, or find the answer to a problem.

the possibility to develop or achieve something in the future.

an accident in which a person that is moving crashes into something.