1. Show (something) is lost: This is a possible interpretation if it's part of a sentence like "The show is lost" or "We've lost the show." This could mean that the show has been canceled, is no longer available, or is missing.
2. Show lost (as in a game): This could mean that a team or player has lost a game or competition. For example, "The Red Sox showed lost against the Yankees" could mean that the Red Sox clearly lost the game.
3. Show is lost (in translation): This could be a metaphor used to describe a situation where the original meaning or intention of something has been lost in translation. For example, "The humor in that joke was completely lost in the translation."
4. Show lost (as a specific phrase): It's possible that "show lost" is a specific phrase used in a particular context, like a technical term or a slang phrase within a certain group.
To understand the meaning of "show lost" you need more context. Please provide the complete sentence or phrase where you encountered it.