Doing your job. action of doing work. To be functioning properly, e.g. a car.

promoter of person, organization, or cause. Person who backs a politician or a team etc..

null. television or radio advertisement.

Used before you explain something simply, clearly.

action of one object striking another. Acts or forces of one thing hitting something else. come into forcible contact with another object.

device for observing or checking something. Electronic screens on which you can see images. observe and check quality over time.

Being able or appropriate for a task or purpose. candidate for job.

The smallest possible; least.

designer or maker of machines. Someone whose job is involved with engineering. design and build.

To hold up or prevent from falling down.

micrometeoroid that has entered earth's atmosphere.

having great power or strength. very.

person who is studying or has expert knowledge of one or more of natural or physical sciences. People who are trained in a science.

capable of being filled with air. plastic or rubber object that must be filled with air before use.

Plan to achieve a desired result. To calculate size, weight or temperature of.