once every two seconds

USAGE SUMMARY

The phrase "once every two seconds" is correct and usable in written English.
It can be used to describe an action or event that occurs repeatedly at a specific interval of two seconds. Example: "The flashing light turns on once every two seconds, creating a rhythmic pattern."

✓ Grammatically correct

News & Media

Science

Wiki

Human-verified examples from authoritative sources

Exact Expressions

5 human-written examples

The images are refreshed once every two seconds.

Independent

For consumer-facing companies, broadly speaking, launching a mobile app isn't exactly newsworthy when an app now launches once every two seconds — nor is "having a mobile strategy" particularly innovative.

TechCrunch

The agglutination slide was gently tilted backwards and forwards approximately once every two seconds for two minutes.

Antimicrobial Resistance and Infection Control

The fatigability of the muscle was determined over a four minute time period using a 200 msec train of stimuli at 30 pps, once every two seconds (Peters and Aulner, 2000).

Biology Open

To start a slow clap, begin clapping no more than once every two seconds and gradually wait for others to build and join in with you.

WikiHow

Human-verified similar examples from authoritative sources

Similar Expressions

54 human-written examples

This works out to approximately once every eight seconds.

The New Yorker

The frequency of such events varies; in humans they occur at each end plate about once every five seconds.

Encyclopedia Britannica

But air traffic controllers can be sure of the precise location of the planes they are directing only when their radar sweeps once every six seconds.

The New York Times

Mr. Hodgson instructed students not to riff more than once every three seconds, so that the audience could absorb each joke.

The New York Times

Admittedly, at the anticipated rate of cloning, this would require an increase in the rate of publication, say from once a month to once every eight seconds.

The Guardian

To watch online: George W. Bush's video ad for his upcoming memoir, "Decision Points," in which he says the word "decision" at an average rate of once every sixteen seconds.

The New Yorker

Expert writing Tips

Best practice

Use "once every two seconds" to emphasize the regularity and consistent interval of an event. This phrase is especially effective when describing automated processes or timed events.

Common error

Avoid mixing "once every two seconds" with similar but less precise phrases like "almost every two seconds" unless the variance is intentional. This keeps the description clear and accurate.

Linguistic Context

The phrase "once every two seconds" functions as an adverbial phrase of frequency, specifying how often an action or event occurs. Ludwig shows this phrase being used in varied contexts, and its evaluation confirms its usability.

Expression frequency: Rare

Frequent in

Science

40%

News & Media

40%

Wiki

20%

Less common in

Formal & Business

0%

Encyclopedias

0%

Reference

0%

Ludwig's WRAP-UP

The adverbial phrase "once every two seconds" is a grammatically correct way to express the frequency of an event occurring at regular two-second intervals. While Ludwig AI confirms its validity and usability, its applications are most frequently found in science, news, and media contexts. Alternatives like "every two seconds" or "at two-second intervals" offer conciseness without sacrificing clarity. This phrase is best employed when precision in timing is essential, avoiding inconsistency to maintain clarity and accuracy in descriptions.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

every two seconds

Omission of "once" makes it more concise.

at two-second intervals

Emphasizes the regular spacing of the occurrences.

every other second

Implies the same frequency, but focuses on alternation.

one time every two seconds

Adds "one time" for clarity but slightly increases length.

bi-secondly

Uses a less common adverbial form.

occurring every two seconds

Focuses on the event's continuous happening

every pair of seconds

Rephrases using "pair" to denote the two-second duration.

a repetition every two seconds

Highlights the repeated nature of the action

repeated each two seconds

Changes the structure by placing "repeated" at the beginning.

every second moment

A more poetic, less precise rephrasing of the time interval.

FAQs

How can I use "once every two seconds" in a sentence?

You can use "once every two seconds" to describe the frequency of an event. For example, "The sensor takes a reading "once every two seconds" to monitor the temperature."

What are some alternatives to "once every two seconds"?

Alternatives include "every two seconds", "at two-second intervals", or "every other second".

Is it more correct to say "once every two seconds" or "every two seconds"?

Both phrases are correct, but ""every two seconds"" is more concise and commonly used. "Once every two seconds" emphasizes that the event happens a single time within each two-second period.

What's the difference between "once every two seconds" and "twice every four seconds"?

While both phrases describe the same frequency, "once every two seconds" is simpler and clearer. "Twice every four seconds" can be confusing and is less commonly used.