cause, explanation, or justification for action or event. Explanations for why some things occurred or was done. To think and make conclusions in a logical manner.

Whether it is raining, sunny, cold etc. outside. wear away something by exposure to atmosphere.

To have or be included as a part of something.

belonging to or forming outside. outward features.

structure with roof and walls. To construct a house, office, factory.

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

essential or characteristic part. Forces of the weather, usually bad weather.

act of asking politely or formally for something. Things that have been asked for. politely or formally ask for.

quality or state of being different or diverse.

Extremely important or necessary.

reach end of journey.

To show how something works (e.g. product).

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.

advocate or follower of principles of humanism. People believing that people act morally, without God.

Software program, e.g. for smart phone.