Same word as villi:

beard, bristle, cilium, coiffure, cowlick, cut, down, eyebrow, eyelash, feeler, fiber, filament, fluff, fringe, frizzies, fur, grass, haircut, hairstyle, lock, mane, mop, moustache, quill, ruff, shock, sideburn, split ends, strand, thatch, tress, tuft, vibrissa, villus, whiskers, wig, wool