action of helping or doing work for someone. Maintenance of machineries so it runs well, e.g. cars. To maintain a piece of machinery so it runs well.

likely or prone to be affected by. conditionally upon. What a book, article etc. is about; theme. To cause to suffer or experience something.

Of or relating to management.

Being what was wanted or needed. used to greet someone in polite or friendly way. instance or manner of greeting someone. greet someone arriving in polite or friendly way.

Part of a whole divided into hundredths.

person who trains people or animals. People that train sports competitors or animals.

To know the meaning of language, what someone says.

contact with facts or events. To gain knowledge by doing things.

planned or conceived in detail for specific purpose. To think of a plan.

Use or knowledge of science in industry etc..

Of practical use of machine/science in industry. undefined.

Act of getting knowledge. To get knowledge or skills by study or experience.

unpleasant or evil thing or creature supposedly sent by someone with paranormal or magical powers to warn. To cause to behave or respond in a particular way.

Being complicated. To have or be included as a part of something.

To make something ready for use.