stray (strays plural & 3rd person present) (straying present participle) (strayed past tense & past participle )
1 verb If someone strays somewhere, they wander away from where they are supposed to be.
Tourists often get lost and stray into dangerous areas... V prep/adv
2 adj A stray dog or cat has wandered away from its owner's home.
...a refuge for stray cats.
Stray is also a noun., n-count
3 verb If your mind or your eyes stray, you do not concentrate on or look at one particular subject, but start thinking about or looking at other things.
(=wander)
Even with the simplest cases I find my mind straying... V
4 adj You use stray to describe something that exists separated from other similar things.
An 8-year-old boy was killed by a stray bullet...