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An established law, custom, or practice. It refers to a system of rules or a organized way of doing things in society.

Having a significant meaning or, in statistics, representing a result that is unlikely to have occurred by chance.

Absolutely necessary or essential; something that cannot be dispensed with.

A person's particular way of looking at or interpreting something; an opinion or viewpoint, usually formal and considered.

A state where something that was hidden or potential has become visible or apparent. Often used in social or psychological analysis.

The way in which two or more concepts, objects, or people are connected; a correlation or association.

A general view or summary of a situation or topic; an overview. Often used in the introduction of a report.

The act of bringing something new into use or operation; implementation or introduction. Common in discussions about technology or policy.

The main point, summary, or abstract of a speech, article, or document. It distills the essence of a larger work.

Something that does not change; permanent or immutable. It is often used in scientific laws, philosophical truths, or describing strong personal principles.