Quilt Definition & Meaning - Merriam-Webster quilted; quilting; quilts transitive verb 1 a : to fill, pad, or line like a quilt b (1) : to stitch, sew, or cover with lines or patterns like those used in quilts (2) : to stitch (designs) through layers of cloth c : to fasten between two pieces of material 2 : to stitch or sew in layers with padding in between intransitive verb 1