A type of fabric with six letters is "cotton." Cotton is a natural fiber derived from the cotton plant and is widely used for making clothing, bed linens, and various household items due to its softness and breathability.
Moleskin
fabric = cotton building material = cement
Feline
A Tom-Tom
Typify
Overcast. The overcast stitch is a type of hand sewing used on a raw (unfinished) edge to prevent unraveling of the fabric.
baboon
Launch Dinghy Barque
it is a type of fabric
brazil
A good way to surface stitch letters is to cover the fabric with a "dressing" or a water-soluable stabilizer such as "Solvey" before embroidering the letters. The dressing prevents the embroidery stitches from pulling tightly into the fabric, so that the threads lie neatly on the fabric surface.
To make lettered shirts, you can use iron-on letters, fabric paint, or embroidery to add letters to a plain shirt. Iron-on letters are easy to use and can be found at craft stores. Fabric paint allows you to hand-paint letters onto the shirt. Embroidery involves stitching letters onto the fabric. Choose the method that best suits your skills and preferences.