n. A ballroom dance in triple time with a strong accent on the first beat.n. A piece of music for this dance.n. An instrumental or vocal composition in triple time.n. Informal Something that presents no difficulties and can be accomplished with little effort.verb-intransitive. To dance the waltz.verb-intransitive. Slang To move unhesitantly, briskly, and with aplomb: always waltzes into the office 30 minutes late. verb-intransitive. Informal To accomplish a task, chore, or assignment with little effort: waltzed through the exams. v. To dance the waltz with.v. Slang To lead or force to move briskly and purposefully; march: waltzed them into the principal's office. idiom. waltz Matilda Australian To travel about, especially on foot, carrying a swag.