cause, explanation, or justification for action or event. Explanations for why some things occurred or was done. think, understand, and form judgements logically.

state of atmosphere as regards heat, cloudiness, etc.. To erode or become damaged due to the environment.

include as necessary or integral part.

Concerning the outside of something; outer. outward features.

structure with roof and walls. To establish e.g. a reputation, over time.

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. To ask for, usually politely and formally.

Particular type of thing or person.

Extremely important or necessary.

To reach the place you are traveling to.

To prove or make clear by reasoning or evidence.

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.

The specific use of a machine, idea, or discovery.