As an Ending Rhyme, yes.
Flee Free Agree Tree Three
Some sad words that rhyme with "grey" include: dismay, stray, and betray.
Yes, it is common to encounter stray cats meowing and running away before you can approach them.
ErrorFault
Yes.
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Yes.
Yes.
Yes
Yes.
Yes, eye and away are a slant rhyme also hands and sands, sea and me, and along and appointed.
The kitten is probably trying to tell weather this new stray is a dangour to her/him. The kitten maybe staring so that she knows where the stray is and knows she/he can run away or be ready if the stray starts to approach her/him. It coud be curiosity.