Conlusion

Conlusion is typically a misspelling of the English noun conclusion. In standard usage, conclusion refers to the final part of a discourse or document, a judgment or decision reached after consideration, or a logical result derived from premises. In writing, the conclusion section or paragraph summarizes the main points, restates the thesis, and sometimes offers implications or recommendations. In logic and mathematics, a conclusion is the statement that follows from given premises in an argument or proof.

Etymology and related forms: The word conclusion comes from Latin conclusio, from concludere “to close.” The English form is built from the same root, with the common suffix -sion. The verb form is conclude, and related forms include conclusive, conclusively, and conclusionary in some contexts.

Usage notes: Most modern dictionaries list conclusion as the standard term; conlusion is generally regarded as a misspelling. Writers should use conclusion in formal contexts and be mindful of context—academic papers, reports, and essays typically include a conclusion section, while in everyday language people may simply summarize or end a discussion.

See also: conclusion (logic), conclusion (writing), conclusions (plural).