Definition of Single-file
one behind the other
Examples of Single-file in a sentence
The students were asked to stay in a single-file line, walking one behind the other all the way to the cafeteria.
Police ordered the criminals to walk in a single-file line, one behind the other until the reached the van.
Guests waited in a single-file line outside of the building until the doors opened and they were able to gain entry.
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