noun

• The manner in which two things may be associated.
• A member of one's extended family; a relative.
• (chiefly in the plural) A relationship; the manner in which and tone with which people or states, etc. interact.
• The act of relating a story.
• (set theory) A set of ordered tuples.
• (set theory) Specifically, a set of ordered pairs; a binary relation.
• (databases) A set of ordered tuples retrievable by a relational database; a table.
• (mathematics) A statement of equality of two products of generators, used in the presentation of a group.
• (category theory) A subobject of a product of objects.
• (usually collocated: sexual relation) The act of intercourse.