Stray

verb (used without object)
1.
to deviate from the direct course, leave the proper place, or go beyond the proper limits, especially without a fixed course or purpose; ramble:
to stray from the main road.
2.
to wander; roam:
The new puppy strayed from room to room.
3.
to go astray; deviate, as from a moral, religious, or philosophical course:
to stray from the teachings of the church.
4.
to digress or become distracted.
noun
5.
a domestic animal found wandering at large or without an owner.
6.
any homeless or friendless person or animal.
7.
a person or animal that strays:
the strays of a flock.
8.
strays, Radio. static.
adjective
9.
straying or having strayed, as a domestic animal.
10.
found or occurring apart from others or as an isolated or casual instance; incidental or occasional.
11.
Radio. undesired:
stray capacitance.
verb (intransitive)
1.
to wander away, as from the correct path or from a given area
2.
to wander haphazardly
3.
to digress from the point, lose concentration, etc
4.
to deviate from certain moral standards
noun
5.

a domestic animal, fowl, etc, that has wandered away from its place of keeping and is lost
(as modifier): stray dogs

6.
a lost or homeless person, esp a child: waifs and strays
7.
an isolated or random occurrence, specimen, etc, that is out of place or outside the usual pattern
adjective
8.
scattered, random, or haphazard: a stray bullet grazed his thigh