GUI operating system for personal computers. Openings in walls or doors to let in light.

in existence or operation at current time. To be present, alive or real.

assembled or made from whatever is available, and so unlikely to be of highest quality. Action of rubbing your skin when itchy. score or mark surface of something with sharp or pointed object.

Moving to a different place, job, or school. To move something from one place to another.

act of asking politely or formally for something. To ask for, usually politely and formally.

not same as another or each other.

Causing trouble. Something difficult to deal with or causes trouble.

rubbing of muscles and joints with hands. rub with the hands.

To guard a place or people; protect child, etc..

Being finished; done; achieved. To finish or reach the end of doing something.

having paid employment. action of doing work. To make an effort to do something.

conversation in book or play. take part in dialogue.

For a reason.

electronic device for storing and processing data.