Department
Part of speech: noun
Definition: A part, portion, or subdivision. A distinct course of life, action, study, or the like; appointed sphere or walk; province. Subdivision of business or official duty; especially, one of the principal divisions of executive government; as, the treasury department; the war department; also, in a university, one of the divisions of instructions; as, the medical department; the department of physics. A territorial division; a district; esp., in France, one of the districts composed of several arrondissements into which the country is divided for governmental purposes; as, the Department of the Loire. A military subdivision of a country; as, the Department of the Potomac. Act of departing; departure.
Example sentence: Design is so critical it should be on the agenda of every meeting in every single department.
Section
Part of speech: noun
Definition: A cutting; a part cut out from the rest of something.A part, piece, division.A part of a document.
Part of speech: verb
Definition: To cut, divide or separate into pieces.To commit, as for mental health reasons (after various sections of legal acts regarding mental health).
Example sentence: The thing I love most about going to a book store is the self-help section is the biggest section because Americans know we're screwed up. We know it. But we want to get better.