View synonyms for synchronous


[ sing-kruh-nuhs ]


  1. occurring at the same time; coinciding in time; contemporaneous; simultaneous:

    The longest running “Turkey Trot” 5K is being held as a synchronous race in more than a dozen cities this Thanksgiving morning, and all proceeds will benefit the food bank.

  2. (especially in education) occurring in real time, as with participants logged in at an appointed time for a live lecture or discussion: Synchronous telemedicine connects patients for instantaneous interactions with a medical professional.

    Lectures for this blended learning class are synchronous webinars and will not be recorded or posted for asynchronous access.

    Synchronous telemedicine connects patients for instantaneous interactions with a medical professional.

  3. going on at the same rate and exactly together; recurring together.
  4. Physics, Electricity. having the same frequency and zero phase difference.
  5. Digital Technology. relating to or being a computer operation that must complete before another event can begin:

    The synchronous operation requires the host CPU to block subsequent activities until the current process concludes.

  6. Computers, Telecommunications. of, relating to, or operating using fixed-time intervals coordinated by a clock, as in paired data transmission.
  7. Aerospace. geostationary.


/ ˈsɪŋkrənəs /


  1. occurring at the same time; contemporaneous
  2. physics (of periodic phenomena, such as voltages) having the same frequency and phase
  3. occurring or recurring exactly together and at the same rate

    the synchronous flapping of a bird's wings

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Derived Forms

  • ˈsynchronousness, noun
  • ˈsynchronously, adverb

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Other Words From

  • syn·chro·nous·ly adverb
  • syn·chro·nous·ness noun
  • non·syn·chro·nous adjective
  • non·syn·chro·nous·ly adverb
  • non·syn·chro·nous·ness noun
  • un·syn·chro·nous adjective
  • un·syn·chro·nous·ly adverb
  • un·syn·chro·nous·ness noun

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Word History and Origins

Origin of synchronous1

First recorded in 1660–70; from Late Latin synchronus, from Greek sýnchronos, equivalent to syn- “with, together + chrón(os) “time” + -os adjective suffix; syn-, -ous

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Word History and Origins

Origin of synchronous1

C17: from Late Latin synchronus, from Greek sunkhronos, from syn- + khronos time

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Example Sentences

Like most things in this hybrid world, establishing the right blend of asynchronous and synchronous working is the sweet spot.

From Digiday

The district also is offering an online campus for older students that will be a mix of synchronous and asynchronous instruction.

They share an emphasis on deep breathing and breath control, touch and massage, affirming mutual eye gazes, and synchronous movement.

The reason Clubhouse is different and exciting is because it’s synchronous.

Hobbs wasn’t even holding synchronous classes online for older high schoolers.

The loss of whitebark and the rapid increase in human-killed grizzlies are synchronous.

None of the reforms passed in the wake of the financial crisis create any breakers against synchronous global financial panic.

There are no real, long-term safe havens that are immune to synchronous shocks.

They occur, however, either in 'synchronous' or in 'successive' order.

This corresponds to synchronous and successive associations.

Yet synchronous with this the man of ideas and ideals that he kept to himself however; that he divulged to no one.

M. Chappe, the inventor of the semaphore, tried about the year 1790 to introduce a synchronous electric telegraph, and failed.

He had to devise his own governors for the synchronous mechanism, and here his knowledge of acoustics helped him.


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More About Synchronous

What does synchronous mean?

Synchronous describes two or more things happening at the same time, as in The fire resulted in the synchronous events of the fire alarm going off and the sprinkler system activating. 

Synchronous describes something happening in real time, such as with an online course when the students and instructor are all logged in at the same time for a lecture. If you’ve ever attended school via live video, you attended a synchronous class.

Synchronous also describes multiple things happening side by side at the same rate, as in The birdwatcher watched the synchronous flapping of the robin’s wings. 

In physics, synchronous means having the same frequency or phase. A synchronous electric motor, for example, involves a design that results in electric fields of equal voltage.

Example: The frail shelter suffered the synchronous assault of high winds and heavy rain.

Where does synchronous come from?

The first records of the term synchronous come from around 1660. It ultimately comes from the Greek sýnchronos, combining the stem syn- (“with” or “together”) and the noun khronos (“time”).

The word synchronous is very close in meaning to the verb synchronize, which means to cause multiple things to act at the same time and become synchronous.The noun sync, especially in the form in sync, describes a situation in which multiple things are synchronous.

In modern times, online synchronous learning has become more popular. This involves a teacher giving live instruction to students watching over the internet. In contrast, asynchronous learning involves a teacher posting notes or videos online and students consulting them at a later time. You can learn more about these two words at “‘Asynchronous’ vs. ‘Synchronous’: Time To Learn The Difference.”

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What are some other forms related to synchronous?

  • synchronously (adverb)
  • synchronousness (noun)
  • asynchronous (adjective)
  • asynchronously (adverb)

What are some synonyms for synchronous?

What are some words that share a root or word element with synchronous

What are some words that often get used in discussing synchronous?

How is synchronous used in real life?

Synchronous is used to describe things that happen at the same time.



Try using synchronous!

Which of the following is a synonym of synchronous?

A. conjoined
B. simultaneous
C. rehearsed
D. identical




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