thimble in Irish

(sewing) A pitted, now usually metal, cup-shaped cap worn on the tip of a finger, which is used in sewing to push the needle through material.

As much as fills a thimble (sense 1); a thimbleful.

(technology) A socket in machinery shaped like a thimble.

(nautical) A metal ring which a cable or rope intended for attaching to other things is looped around as a protection against chafing.