There are various synonyms for the phrase "no longer spoken" that can be used to describe a language that is extinct or a dialect that has fallen out of use. Some of the alternatives include "dead language," "obsolete tongue," "archaic dialect," "vanished speech," "forgotten tongue," "extinct linguistic system," "outmoded idiom," "defunct language," "lost slang," and "disappeared jargon." These terms highlight the idea that a language or dialect can become lost to time, no longer used by any speakers or entombed in texts that are not understood by the majority of people. These synonyms help to convey a sense of longing or nostalgia for the lost communication systems of the past.