"Kat with eight lives". I also am talking in the context of verbal exchange. "Cat" is rarely spelled with a K, So saying one knew how it was spelled without seeing it written is presumptuous and borderline meta-gaming.

But I am now nitpicking. An assassin with the name 'cat' and a gun for hire seemingly wearing cat ears is a safe assumption when the commander called her cat is a safe assumption.

I also want to note, Not even her reputation thinks her feline aspects are real. All it says is that she wears cat ears and calls herself Kat.