A colony ship refers to a spaceship designed to transport a group of people to a new place or planet where they plan to establish a new colony or settlement. Full definition
In Endless Space 2, you will set out to discover habitable worlds, send colony ships out to take over those worlds, then generate resources to continually grow and enhance your empire. (seganerds.com)
This is the future; if there are colony ships available to store hundreds of people in space, why are there no large varieties of planetary transportation? (avencolony.com)
SF novel, first in a new series that parallels the Ender, Ender's Shadow, and First Formic War series, about a school that recruits smart kids for training as leaders of colony ships and colonies. (locusmag.com)