Severing means cutting or breaking something apart completely, often by force. It can refer to physically cutting something, like severing a rope or limb, or ending a connection or relationship, such as severing ties between countries or people.Regarding contation, there are no relevant search results or common dictionary definitions for the term "contation." It might be a misspelling or a less common word. If you meant "contation" as a specific term, please provide more context or check the spelling.