Definition of thread

• a fine cord of twisted fibers (of cotton or silk or wool or nylon etc.) used in sewing and weaving
• any long object resembling a thin line; "a mere ribbon of land"; "the lighted ribbon of traffic"; "from the air the road was a grey thread"; "a thread of smoke climbed upward"
• the connections that link the various parts of an event or argument together; "I couldnt follow his train of thought"; "he lost the thread of his argument"