Buying, selling and exchange of goods in business. To give something in return for something else.

To act in a certain way toward someone.

in space separating things. In the space that separates two objects.

For a reason.

Normal; usual; expected.

(Of an increase) at a faster and faster rate.

Referring to any particular kind, type, quantity. at all. Anything or everything needed; no matter what. said as response indicating reluctance to discuss something, often implying indifference. used to emphasize lack of restriction.

Not of the same kind; unlike other things. alter coat of arms.

Typical or normal; usual; ordinary. Total of numbers divided by the number of items. amount to or achieve as average rate or amount over period of time.

Being what was wanted or needed. used to greet someone in polite or friendly way. instance or manner of greeting someone. To greet someone who has just arrived.

mathematical determination. An educated guess about something.

giving or ready to give help.

Used to add new (often different) information.

individual fact or item. Small parts of some things; tiny facts. describe fully.

by means of mathematics.