WordNet sense 1 (any long object resembling a thin line):

ribbon

WordNet sense 2 (the connections that link the various parts of an event or argument together):

train of thought

WordNet sense 3 (a fine cord of twisted fibers (of cotton or silk or wool or nylon etc.) used in sewing and weaving):

yarn

WordNet sense 4 (the raised helical rib going around a screw):

screw thread

WordNet sense 5 (to move or cause to move in a sinuous, spiral, or circular course):

meander, wander, weave, wind, wind

WordNet sense 6 (thread on or as if on a string):

draw, string