Stiffener (noun)

A device or material used to make something stiffer.

Origin:

A stiffener is a device or material used to make something stiffer. the word "stiffener" comes from the verb "stiffen" which means to make or become stiff or rigid.

Examples:

1. The shirt collar was reinforced with a stiffener.
2. The use of stiffeners in the construction of bridges helped to increase their stability.
3. The stiffener helped to keep the shape of the hat.
4. The stiffener was added to the fabric to make it more durable.
5. The stiffener was a rod made of steel that was placed inside the PVC pipe to make it more rigid.