stray

Any domestic animal that has no enclosure, or its proper place and company, and wanders at large, or is lost; an estray.

One who is lost, either literally or metaphorically.

The act of wandering or going astray.

An area of common land or place administered for the use of general domestic animals, i.e. "the stray"

To wander, as from a direct course; to deviate, or go out of the way.

To wander from one's limits; to rove or roam at large; to go astray.

To wander from the path of duty or rectitude; to err.

To cause to stray.

Having gone astray; strayed; wandering

“The alley is full of stray cats rummaging through the garbage.”

In the wrong place; misplaced.

“a stray comma”