Tack To secure with a few small hand stitches.
Tassel fringe A decorative trim that consists of a gimp or braid portion combined with a fringe comprised of tassels.
Tension The balance between the bobbin and needle threads on a sewing machine; correct tension ensures a perfect stitch.
Topstitch A line of stitching worked from the right side of the fabric to reinforce a seam and/or to make a decorative effect.
Tuck A small fold or pleat in a fabric or trim. Turn under: to turn the edge of a piece of fabric to the wrong side, usually by a prescribed amount, such as 1/2 inch.
Welting Filler cord covered with fabric and used to trim edges or seams.
Wrong side The back of the fabric, not intended to be seen in the finished project.
Zipper foot A sewing machine attachment designed for installing zippers; the design of the foot allows the needle to stitch close to items such as zippers and cording.