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adj Common

binary

BEYE-nuh-rih

Binary (adj) means Based on just two options, states, or values. Example: “The debate was framed as a binary choice between war and peace.”

adj
1
Based on just two options, states, or values.
"The debate was framed as a binary choice between war and peace."
2
Relating to the base-2 number system, which uses only 0s and 1s.
"Computers store all data internally in binary."
noun
1
The base-2 number system itself.
"She converted the decimal number into binary for the assignment."

How to use binary

Learner’s notes

In plain EnglishInvolving exactly two options or values — most familiar from computing's 0s-and-1s number system.

Common mistake

Don't confuse "binary" (two states) with "biannual" (twice a year) or "biennial" (every two years).

Easily confused with
Common pairings
binary code binary choice binary system

Word forms

more binary comparative, binaries plural, most binary superlative

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Test yourself on “binary” A quick quiz — meaning, synonyms & usage

Fill the gap

Can you complete this real example?

The debate was framed as a _____ choice between war and peace.

Etymology

From Late Latin bīnārius ("consisting of two"), from Latin bīnī ("two by two, a pair").

Origin: Late Latin

dual twofold two-part dualistic double black-and-white

Antonyms

non-binary

Related words

Rhymes for binary

See all rhymes for binary →

Frequently asked questions

What does “binary” mean?

The word “binary” means based on just two options, states, or values. In plain terms, involving exactly two options or values — most familiar from computing's 0s-and-1s number system.

How do you pronounce “binary”?

“Binary” is pronounced BEYE-nuh-rih (/ˈbaɪ.nə.ɹi/ in IPA).

How do you use “binary” in a sentence?

Here is “binary” used in a sentence: “The debate was framed as a binary choice between war and peace.”

What is another word for “binary”?

Words with a similar meaning to “binary” include black-and-white.

What is the opposite of “binary”?

The opposite of “binary” — its antonyms — is non-binary.

What part of speech is “binary”?

Depending on how it is used, “binary” can be an adjective and a noun.

Where does the word “binary” come from?

The word “binary” comes from Late Latin. From Late Latin bīnārius ("consisting of two"), from Latin bīnī ("two by two, a pair").

Is “binary” a common word?

“Binary” is a fairly common word in modern English.

What is the difference between binary and decimal?

"Binary" is the base-2 number system, using only the digits 0 and 1, while decimal is the base-10 system using the digits 0 through 9. Computers work in binary internally, whereas people usually count in decimal.

What is the difference between binary and non-binary?

"Binary" describes something based on just two options or states, while "non-binary" describes something that does not fit into only two categories. The contrast is common when discussing gender, where "binary" refers to two categories and "non-binary" to identities outside them.

What are common collocations with binary?

"Binary" frequently pairs with nouns like "code," "number," "system," "digit," "star," and "choice." A "binary choice" uses the two-option sense, while "binary code" uses the base-2 sense.

Why do computers use binary?

Computers use binary because their circuits have two reliable states, on and off, which map neatly onto the 1 and 0 of the base-2 system. This makes binary a natural fit for storing and processing digital information.

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Definitions: FreeDict original editorial