noun / verb
convoy
KAHN-voy/ˈkɑːnvɔɪ/
A group of vehicles or ships traveling together for protection or coordination, or traveling with such a group.
The convoy moves slowly along the mountain road under escort.

Etymology
Together and road underlie the image of accompanying someone on a journey for protection. The name shifted from protective escorting to the group of ships or vehicles traveling under escort.
In context
the Convoy of merchant ships stretched out in six or seven long columns with a screen of Destroyers and Corvettes
More examples
- The destroyer convoyed the supply ships.
- Several convoys reached the port safely.
- They are convoying the relief trucks through the region.
Forms
convoy · convoys · convoyed · convoying