number expressing the central or typical value in a set of data. Total of numbers divided by the number of items. amount to or achieve as average rate or amount over period of time.

business relations or transactions. To give (something bad) to.

person who teaches. People who teaches others, especially in a school.

To fight, attack or damage something or someone.

used for emphasis with following adjective functioning as adverb. Thing that is not yet known or named.

set of circumstances in which one finds oneself.

precious stone. Very hard colorless stones used in jewelry.

assembled or made from whatever is available, and so unlikely to be of highest quality. mark or wound made by scratching. To rub your skin with your nails to stop an itch.

set of related web pages located under single domain name. Collections of webpages in one location.

To become aware of or understand mentally.

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.

Ideas of a particular group. To have an idea about something without certainty.

Process of giving or receiving teaching.

Used to add new (often different) information.