launch forth upon (something)

launch forth upon (something)

1. old-fashioned To begin or set out on a journey or trip. We'll need to launch forth upon our trip around 8 AM if we want to reach New York before dusk. The battalion of soldiers launched forth upon their mission.2. old-fashioned To begin moving or journeying in a boat on some body of water. We must ensure our supplies are fully stocked before we launch forth upon the unforgiving Atlantic ocean. We launched forth upon the wild river.3. old-fashioned To giving a spoken address of some kind. The priest launched forth upon a heated sermon about the sin of material wealth. I left the table when my grandfather launched forth upon yet another long-winded diatribe about the government.4. To begin or initiate some plan, undertaking, or project. The government will be launching forth upon its controversial new plan next month. The group of rebels launched forth upon a futile attempt to overthrow the government.See also: forth, launch, upon