This tool is used to keep the fabric taut/stretch while doing embroidery.*1 pointPounceNeedleEmbroidery hoopGauge

The tool used to keep the fabric taut or stretched while doing embroidery is called an Embroidery hoop.

Explanation:

Embroidery hoops are instrumental in the process of hand embroidery as they hold the fabric securely in place, preventing it from shifting or bunching while you work. This tautness is essential for achieving even stitches and intricate designs. The hoop typically consists of two circular frames that can be adjusted to maintain proper tension on the fabric, allowing the embroiderer to focus on the artistic aspects of their work without worrying about the fabric shifting. The pounce is used for transferring designs, needles are for stitching, and gauges help measure distances or sizes, but it is the embroidery hoop that specifically serves to keep the fabric firm and stable during the embroidery process.