EXTENSION — СИНОНІМІЯ
extension an educational opportunity provided by colleges and universities to people who not enrolled as regular students
extension an addition to the length of something
WordNet
extension an additional telephone set that is connected to the same telephone line
WordNet
extension amount or degree or range to which something extends
WordNet
extension the most direct or specific meaning of a word or expression; the class of objects that an expression refers to
WordNet
extension the spreading of something (a belief or practice) into new regions
WordNet