thimbles is a form of:

Thimble



noun
1.
(1. A small cup made of metal, ceramic, plastic, leather, or other hard material, worn for protection on the finger that pushes the needle in sewing. 2. Any of various tubular sockets or sleeves in machinery. 3. Nautical. a. A metal ring fitted in an eye of a sail to prevent chafing. b. A metal ring around which a rope splice is passed) ស្នាប់ដេរ
ENGLISH MEANING
noun
1.
A kind of cap or cover, or sometimes a broad ring, for the end of the finger, used in sewing to protect the finger when pushing the needle through the material. It is usually made of metal, and has upon the outer surface numerous small pits to catch the head of the needle.
2.
Any thimble-shaped appendage or fixure.
3.
A tubular piece, generally a strut, through which a bolt or pin passes.
4.
A fixed or movable ring, tube, or lining placed in a hole.
5.
A tubular cone for expanding a flue; -- called ferrule in England.
6.
A ring of thin metal formed with a grooved circumference so as to fit within an eye-spice, or the like, and protect it from chafing.