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.

sympathetically aware of other people's feelings. Knowledge about something or someone. To know the meaning of language, what someone says.

tending to heal. process of making or becoming sound or healthy again. To recover from or forget a bad experience.

To allow others to use your things.

take place.

Way of doing by using special knowledge or skill.

branch of science concerned with nature and properties of matter and energy. The study of heat, light, and energy on objects.

Not of the same kind; unlike other things.

obstruction which makes movement or flow difficult or impossible. When objects or materials prevent onward movements.

discrete quantity of energy proportional in magnitude to frequency of radiation.

used for emphasis with following adjective functioning as adverb. thing that is unspecified or unknown.

To take place or occur.

More than usual; extremely.

Act of getting knowledge. To get knowledge or skills by study or experience.

(Of two lines) at equal distance from each other. A line on a map a set distance from the equator. To compare.