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thread (n.)

Old English þræd "fine cord, especially when twisted" (related to þrawan "to twist"), from Proto-Germanic *thredu- "twisted yarn" (source also of Old Saxon thrad, Old Frisian thred, Middle Dutch draet, Dutch draad, Old High German drat, German Draht, Old Norse þraðr), literally "twisted," from suffixed form of PIE root *tere- (1) "to rub, turn." Meaning "spiral ridge of a screw" is from 1670s. Threads, slang for "clothes" is 1926, American English.

The silk line, as spun by the worm, is about the 5000th part of an inch thick; but a spider's line is perhaps six times finer, or only the 30,000th part of an inch in diameter, insomuch, that a single pound of this attenuated substance might be sufficient to encompass our globe. [John Leslie, "Elements of Natural Philosophy," Edinburgh, 1823]

Nuts and bolts you know as little things that put big things together. Actually, our whole industrial civilization hangs by a thread--a screw thread. [Popular Science, March 1949]

thread (v.)

"to put thread through a needle," mid-14c., from thread (n.); in reference to film cameras from 1913. The dancing move called thread the needle is attested from 1844. Related: Threaded; threading.

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Definitions of thread from WordNet
1
thread (v.)
to move or cause to move in a sinuous, spiral, or circular course;
Synonyms: weave / wind / meander / wander
thread (v.)
pass a thread through;
thread a needle
thread (v.)
remove facial hair by tying a fine string around it and pulling at the string;
She had her eyebrows threaded
thread (v.)
pass through or into;
thread film
thread tape
thread (v.)
thread on or as if on a string;
thread dried cranberries
Synonyms: string / draw
2
thread (n.)
a fine cord of twisted fibers (of cotton or silk or wool or nylon etc.) used in sewing and weaving;
Synonyms: yarn
thread (n.)
any long object resembling a thin line;
a thread of smoke climbed upward
from the air the road was a grey thread
Synonyms: ribbon
thread (n.)
the connections that link the various parts of an event or argument together;
he lost the thread of his argument
Synonyms: train of thought
thread (n.)
the raised helical rib going around a screw;
Synonyms: screw thread
From wordnet.princeton.edu