A long, thin strand of cotton, nylon, or other fibers used in sewing or weaving.

“She chose a red thread to match the color of the fabric.”

A series of connected messages or posts in an online discussion or social media.

“I found a very interesting thread on Twitter about climate change.”

To pass a thread through the eye of a needle or through a series of holes.

“It is difficult to thread a needle when the light is dim.”