person who teaches something. People who teaches or explains usually as a job.

To become aware of or understand mentally.

Series of classes at a college or university. provide machine with program.

A man in charge of a meeting.

To do something without stopping, or after pausing.

practice or science of collecting and analysing numerical data in large quantities. Mathematics used to interpret numerical data.

existing under surface of sea. warship designed to operate submerged in sea.

providing additional help. auxiliary person or thing.

To put a ship into the water for the first time.

remaining same in all cases and at all times. distinctive clothing worn by members of same organization or body or by children. To dress in formal clothes like the army wear.

To arrange and plan things, e.g. a party.

Series of actions meant to achieve a goal. To work in an organized, active way towards a goal.

To get something someone has given or sent to you.

gladly received. used to greet someone in polite or friendly way. instance or manner of greeting someone. To accept or receive something happily and gladly.

action or process of innovating. Processes of creating new ideas or inventions.