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.

For a reason.

Being what was wanted or needed. used to greet someone in polite or friendly way. Friendly greeting to someone who has arrived. To accept or receive something happily and gladly.

Viewed as a whole; in general, not as details. taken as a whole. trousers formerly worn as part of army uniform.

of no value. not at all. Number or value of zero. Not anything, not a single thing.

having been thought about carefully. To think carefully about something.

Concerning trade, industry, and money.

expert in economics. People who studies economics.

constituting result found by dividing total amount. Total of numbers divided by the number of items. amount to or achieve as average rate or amount over period of time.

To grow something naturally.

split into parts. To separate something into equal pieces.

Being capable of being stopped from happening.

To show or describe something in a particular way.

To control exactly how something will be or act.

particular land with own government.