To make something easier to do, use or understand.

Underground base on which building is constructed.

Throwing a baseball to a batter. To suggest a product, idea to make someone buy.

Book of instruction or guidance; manual.

engaging in speech. action of talking. To make a formal speech about something.

Expressed using writing. To invent or create a computer program. To compose letters and words on paper of a screen.

spoken or written account of person or event.

used to emphasize basic, fundamental, or intrinsic nature of person or thing.

(of headache) severe. action of dividing or being divided into parts. To divide something in an even or fair way.

in most cases.

From one end or side of something to the other. From the beginning of something until the end. By a particular way or process; by the use of.

Part of a shirt or coat that covers the shoulders. put something heavy over one's shoulder or shoulders to carry.

make or become better.

science of motion. Branch of physics concerned with motion of bodies.

plan of action or policy designed to achieve major or overall aim. Branch of military dealing with command.