pintucks
a tiny, narrow, raised fold of fabric (typically 1/8 inch or less in width) stitched flat in parallel rows to add decorative texture and subtle structure to clothing and household linen Not to be confused with «Pinning». Aliases: tuck, pintucks.
Where it is used
11. Pinning Side Edges
p. 11- Pin the side edges together, aligning the edges and notches, with right sides facing each other.

Pinning Inseams
p. 3- Place the front and back pieces together in pairs, right sides facing, aligning the inseams. Pin together from the front piece side.

Pinning Side Edges
p. 10- Pin the side edges together, aligning the edges and notches, with right sides facing each other.

Pinning the Facing to the Neckline
p. 3- Be sure to make small notches along the center front and back lines on both the front and back pieces. Turn the garment inside out and place the facing into the neckline. With right sides together, align the facing and neckline, matching the marking points, and pin them in place. The neckline seam on the facing should meet the marking at the center back. Gently stretch the facing between the matching points and pin from the facing side.
Related terms
not to be confused withPinning
marketing variant ofCenter vertical pleat