single file

When he finally looked up, he saw players lined up in a single file offering hugs and telling him, “We’re going to win this battle together.”

Later, looking over from a nearby hill, we could see the rebels in military fatigues walking in single file and stopping the people on the Congolese side from making the crossing.

Their flashlights swung left to right as around a dozen men walked single file across the hilltop.

Drone footage from the weekend showed long lines of men and boys standing or walking in single file.

Compared to cells moving in a single file, clusters were much slower.