Thread vs. Yarn

Thread and Yarn Definitions
Thread
Fine cord of a fibrous material, such as cotton or flax, made of two or more filaments twisted together and used in needlework and the weaving of cloth.
Yarn
A continuous strand of twisted threads of natural or synthetic fibers, such as wool or nylon, used in weaving or knitting.
Thread
A piece of such cord.
Yarn
A similar strand of other materials such as glass or plastic.
Thread
A thin strand, cord, or filament of natural or manufactured material.
Yarn
(Informal) A long, often elaborate narrative of real or fictitious adventures; an entertaining tale.
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Thread
Something that suggests the fineness or thinness of such a strand, cord, or filament
A thread of smoke.
Yarn
To tell an entertaining tale or series of tales.
Thread
Something that suggests the continuousness of such a strand, cord, or filament
Lost the thread of his argument.
Yarn
(uncountable) A twisted strand of fiber used for knitting or weaving.
Thread
A helical or spiral ridge on a screw, nut, or bolt.
Yarn
(nautical) Bundles of fibers twisted together, and which in turn are twisted in bundles to form strands, which in their turn are twisted or plaited to form rope.
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Thread
A portion of a program that can run independently of and concurrently with other portions of the program.
Yarn
(countable) A story, a tale, especially one that is incredible.
Thread
A set of posts on a newsgroup, composed of an initial post about a topic and all responses to it.
Yarn
To tell a story or stories, especially one that is lengthy or unlikely to be true.
Thread
Threads(Slang)Clothes.
Yarn
Spun wool; woolen thread; also, thread of other material, as of cotton, flax, hemp, or silk; material spun and prepared for use in weaving, knitting, manufacturing sewing thread, or the like.
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Thread
To pass one end of a thread through the eye of (a needle, for example).
Yarn
One of the threads of which the strands of a rope are composed.
Thread
To pass (something) through in the manner of a thread
Thread the wire through the opening.
Yarn
A story told by a sailor for the amusement of his companions; a story or tale; as, to spin a yarn.
Thread
To pass a tape or film into or through (a device)
Thread a film projector.
Yarn
The act of giving an account describing incidents or a course of events;
His narration was hesitant
Thread
To pass (a tape or film) into or through a device.
Yarn
A fine cord of twisted fibers (of cotton or silk or wool or nylon etc.) used in sewing and weaving
Thread
To connect by running a thread through; string
Thread beads.
Yarn
Tell or spin a yarn
Thread
(Sports) To throw or send (a pass) through a heavily defended area to a teammate.
Thread
To make one's way cautiously through
Threading dark alleys.
Thread
To make (one's way) cautiously through something.
Thread
To occur here and there throughout; pervade
“More than 90 geologic faults thread the Los Angeles area” (Science News).
Thread
To machine a thread on (a screw, nut, or bolt).
Thread
To remove (body hair) by using a looped thread that has been wound tightly in the middle.
Thread
To make one's way cautiously
Threaded through the shoals and sandbars.
Thread
To proceed by a winding course.
Thread
To form a thread when dropped from a spoon, as boiling sugar syrup.
Thread
A long, thin and flexible form of material, generally with a round cross-section, used in sewing, weaving or in the construction of string.
Thread
A continued theme or idea.
All of these essays have a common thread.
I’ve lost the thread of what you’re saying.
Thread
(engineering) A screw thread.
Thread
A sequence of connections.
Thread
The line midway between the banks of a stream.
Thread
(computing) A unit of execution, lighter in weight than a process, usually sharing memory and other resources with other threads executing concurrently.
Thread
(Internet) A series of messages, generally grouped by subject, in which all messages except the first are replies to previous messages in the thread.
Thread
A filament, as of a flower, or of any fibrous substance, as of bark.
Thread
(figurative) Composition; quality; fineness.
Thread
(transitive) To put thread through.
Thread a needle
Thread
(transitive) To pass (through a narrow constriction or around a series of obstacles).
I think I can thread my way through here, but it’s going to be tight.
Thread
To screw on; to fit the threads of a nut on a bolt.
Thread
(transitive) To remove the hair using a thread.
How to thread your eyebrows and trim them
Thread
A very small twist of flax, wool, cotton, silk, or other fibrous substance, drawn out to considerable length; a compound cord consisting of two or more single yarns doubled, or joined together, and twisted; also, one fiber of a cord composed of multiple fibers.
Thread
A filament of any substance, as of glass, gold or silver; a filamentous part of an object, such as a flower; a component fiber of any or of any fibrous substance, as of bark.
Thread
Something continued in a long course or tenor; a recurrent theme or related sequence of events in a larger story; as the thread of a story, or of life, or of a discourse.
Thread
Fig.: Composition; quality; fineness.
A neat courtier,Of a most elegant thread.
Thread
A related sequence of instructions or actions within a program that runs at least in part independent of other actions within the program; - such threads are capable of being executed only in oprating systems permittnig multitasking.
Thread
A sequence of messages posted to an on-line newsgroup or discussion group, dealing with the same topic; - messages in such a thread typically refer to a previous posting, thus allowing their identification as part of the thread. Some news-reading programs allow a user to follow a single such thread independent of the other postings to that newsgroup.
Thread
To pass a thread through the eye of; as, to thread a needle.
Thread
To pass or pierce through as a narrow way; also, to effect or make, as one's way, through or between obstacles; to thrid.
Heavy trading ships . . . threading the Bosphorus.
They would not thread the gates.
Thread
To form a thread, or spiral rib, on or in; as, to thread a screw or nut.
Thread
A fine cord of twisted fibers (of cotton or silk or wool or nylon etc.) used in sewing and weaving
Thread
Any long object resembling a thin line;
A mere ribbon of land
The lighted ribbon of traffic
From the air the road was a gray thread
A thread of smoke climbed upward
Thread
The connections that link the various parts of an event or argument together;
I couldn't follow his train of thought
He lost the thread of his argument
Thread
The raised helical rib going around a screw
Thread
To move or cause to move in a sinuous, spiral, or circular course;
The river winds through the hills
The path meanders through the vineyards
Sometimes, the gout wanders through the entire body
Thread
Pass a thread through;
Thread a needle
Thread
Remove facial hair by tying a fine string around it and pulling at the string;
She had her eyebrows threaded
Thread
Pass through or into;
Thread tape
Thread film
Thread
Thread on or as if on a string;
String pearls on a string
The child drew glass beads on a string
Thread dried cranberries