1.a fine cord of twisted fibers (of cotton or silk or wool or nylon etc.) used in sewing and weaving
2.any long object resembling a thin line;
a mere ribbon of land
3.the connections that link the various parts of an event or argument together;
I couldn't follow his train of thought
4.the raised helical rib going around a screw
1.to move or cause to move in a sinuous, spiral, or circular course;
the river winds through the hills
2.pass a thread through;
thread a needle
3.remove facial hair by tying a fine string around it and pulling at the string;
She had her eyebrows threaded
4.pass through or into;
thread tape
5.thread on or as if on a string;
string pearls on a string