: a use of one's property or of water that is for a suitable and beneficial purpose and that does not lead to unreasonable interference with another's use of property or with the natural flow of water

Your table manners are appalling - don't you know how to use a knife and fork? Please use the side entrance. If we clear out the spare room, you can use it as a study. The teacher demonstrated how …

USE definition: to employ for some purpose; put into service; make use of. See examples of use used in a sentence.

If you have a use for something, you need it or can find something to do with it.

to come (also fall, go, etc.) into use: to be introduced into customary or habitual employment or practice; to begin to be used; esp. (of vocabulary, syntax, etc.) to be introduced into common usage.

Use is the general word: to use a telephone; to use a saw and other tools; to use one's eyes; to use eggs in cooking. (What is used often has depreciated or been diminished, sometimes completely …

She quickly used up (all of) her inheritance. Don't shower too long and use up (all) the hot water.