We don't have synonyms for tumer yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are tumor, timer and tamer.
°Especially, a device used to measure the amount of time something takes, or a device that can be set to sound an alarm after a certain amount of time.
°Especially, a device used to measure the amount of time something takes, or a device that can be set to sound an alarm after a certain amount of time.