"It's hard to describe in-- well, human languages? And I don't speak anything else yet. I told Remy to invent me a word." Italian, English and Russian are her primary go-to, and none of them have words for faerie senses. Regardless, she doesn't seem concerned by the questioning; there are ways to get her hackles up, there, but at least for now Hermione hasn't pressed any of her anxiety-buttons. (Which is for the best.) "It's like the sound a muscle memory makes when you taste it."

... that makes perfect sense if you're a faerie. Sort of.