system
Americannoun
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an assemblage or combination of things or parts forming a complex or unitary whole.
a mountain system; a railroad system.
- Synonyms:
- unit
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any assemblage or set of correlated members.
a system of currency; a system of shorthand characters.
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an ordered and comprehensive assemblage of facts, principles, doctrines, or the like in a particular field of knowledge or thought.
a system of philosophy.
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a coordinated body of methods or a scheme or plan of procedure; organizational scheme.
a system of government.
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any formulated, regular, or special method or plan of procedure.
a system of marking, numbering, or measuring; a winning system at bridge.
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due method or orderly manner of arrangement or procedure.
There is no system in his work.
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the world or universe.
- Synonyms:
- cosmos
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Astronomy.
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a number of heavenly bodies associated and acting together according to certain natural laws.
the solar system.
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a hypothesis or theory of the disposition and arrangements of the heavenly bodies by which their phenomena, motions, changes, etc., are explained.
the Ptolemaic system; the Copernican system.
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Biology.
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an assemblage of organs or related tissues concerned with the same function.
the nervous system; the digestive system.
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the entire human or animal body considered as a functioning unit.
an ingredient toxic to the system.
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one's psychological makeup, especially with reference to desires or preoccupations.
to get something out of one's system.
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a method or scheme of classification.
the Linnean system of plants.
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Usually the system the prevailing structure or organization of society, business, or politics or of society in general; establishment.
to work within the system instead of trying to change it.
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Geology. a major division of rocks comprising sedimentary deposits and igneous masses formed during a single geologic period.
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Physical Chemistry. a combination of two or more phases, as a binary system, each of which consists of one or more substances, that is attaining or is in equilibrium.
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Computers. a working combination of hardware, software, and data communications devices.
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Checkers. either of the two groups of 16 playing squares on four alternate columns.
noun
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a group or combination of interrelated, interdependent, or interacting elements forming a collective entity; a methodical or coordinated assemblage of parts, facts, concepts, etc
a system of currency
the Copernican system
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any scheme of classification or arrangement
a chronological system
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a network of communications, transportation, or distribution
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a method or complex of methods
he has a perfect system at roulette
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orderliness; an ordered manner
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(often capital) society seen as an environment exploiting, restricting, and repressing individuals
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an organism considered as a functioning entity
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any of various bodily parts or structures that are anatomically or physiologically related
the digestive system
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one's physiological or psychological constitution
get it out of your system
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any assembly of electronic, electrical, or mechanical components with interdependent functions, usually forming a self-contained unit
a brake system
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a group of celestial bodies that are associated as a result of natural laws, esp gravitational attraction
the solar system
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chem a sample of matter in which there are one or more substances in one or more phases See also phase rule
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a point of view or doctrine used to interpret a branch of knowledge
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Also called: crystal system. mineralogy one of a group of divisions into which crystals may be placed on the basis of the lengths and inclinations of their axes
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geology a stratigraphical unit for the rock strata formed during a period of geological time. It can be subdivided into series
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of system
First recorded in 1610–20; from Late Latin systēma, from Greek sýstēma whole compounded of several parts, equivalent to sy- “”with, together” + stē- (variant stem of histánai “to cause to stand”; akin to Latin stāre “to stand” ) + -ma noun suffix denoting result of action; see sy-, stand
Explanation
A system is a group of things that connect and form some kind of coherent whole. All the individual buses and the separate routes they take through your city are together called a bus system. Any time various separate things act together in some organized way, you can call the entire group of interconnected things a system. Your veins, arteries, and heart together make up your body's circulatory system, and the group of planets which rotate around the sun are called a solar system. The Greek word systema, or "organized whole," is where system originates.
Vocabulary lists containing system
Word Generation Science - Scientific Thinking
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"Principles of Business," Vocabulary from Chapter 1
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Space Science (Astronomy) - Introductory
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
Divers’ primary tool was a vacuum-like system called a dredge, which sucked up sediment from inside the wreck and deposited it into baskets on the sea floor.
From The Wall Street Journal ● Jul. 30, 2026
The 38-year-old German was a centre-half, progressing through the Stuttgart youth system before playing senior football for Hoffenheim from 2007 to 2014.
From BBC ● Jul. 30, 2026
She worries about losing access to her clients and other children, who will now be forced to face a complex immigration system alone.
From Los Angeles Times ● Jul. 30, 2026
MP: I built what I call a 10-3-1, which is, “What is your mission and your vision and your value system for yourself, and then what is your one-year, three-year, 10-year outlook of that vision?”
From The Wall Street Journal ● Jul. 30, 2026
If JB wasn’t afraid, then maybe Jonah didn’t need quite so much adrenaline coursing through his system.
From "Found" by Margaret Peterson Haddix
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“Scientists can trust it. Now it’s moving from people benchmarking the systems to using these for science to look at applications.”
From The Wall Street Journal ● Jul. 30, 2026
Sales of vehicle components, including high-end infotainment systems, also continued rising.
From The Wall Street Journal ● Jul. 30, 2026
"The systems are designed to withstand technical failures. If a computer crashes or power fails, the timer pauses automatically and resumes on another machine."
From BBC ● Jul. 29, 2026
AI agents -- systems that act autonomously to complete tasks rather than just responding to step-by-step prompts in a chatbot -- are hailed across the industry as the next chapter in AI.
From Barron's ● Jul. 29, 2026
She’s always telling me to acknowledge my support systems; to reach out to them, and express gratitude to them.
From "The Sea in Winter" by Christine Day
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.