mo

(noun) an indefinitely short time. Synonyms: moment, minute, second, bit. Examples: "Wait just a moment." "In a mo." "It only takes a minute." "In just a bit."

(noun) a polyvalent metallic element that resembles chromium and tungsten in its properties; used to strengthen and harden steel. Synonyms: molybdenum, Mo, atomic number 42.

(noun) a midwestern state in central United States; a border state during the American Civil War, Missouri was admitted to the Confederacy without actually seceding from the Union. Synonyms: Missouri, Show Me State, MO.