thread

noun

1. 1.

   A long, thin strand of cotton, silk, or other material used in sewing.

2. 2.

   A theme running through something.

3. 3.

   [computing]A sequence of messages on a particular topic.

4. 4.

   [computing]A unit of program execution.

5. 5.

   [as verb]To pass thread through; to make one's way.