noun

• (weaving) A piece of yarn, especially said of warps and wefts in a woven fabric.
• (engineering) A screw thread.
• (computing) A unit of execution, lighter in weight than a process, usually sharing memory and other resources with other threads executing concurrently.
• (Internet) A series of posts or messages, consisting of an initial post and responses to it, generally relating to the same subject, on a newsgroup, Internet forum, or social media platform.

verb

• (transitive) To pass a thread through the eye of a needle.
• (transitive) To fix (beads, pearls, etc.) upon a thread that is passed through; to string.
• (transitive, figurative) To make one's way through or between (a constriction or obstacles).
  "to thread through narrow passages"
• (transitive, figurative) To make one's way through or between (a constriction or obstacles).
  "He threaded his way through legal entanglements."