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1. Lit. to continue marching. Please march on. Don't stop here; there are other parts of the parade coming along behind you. Let's march on. We have a long way to go.
2. Fig. [for time] to continue. Time marches on. We are all getting older. As the day marches on, try to get everything completed.
1. To continue to march: The militia marched on despite the jeers from the people on the sidewalk.
2. To assemble and walk to some place in order to express an opinion, especially opposition, to people of power there: The employees' union marched on the state capitol.