are substantially equivalent

USAGE SUMMARY

The phrase "are substantially equivalent" is correct and usable in written English.
It can be used in contexts where you are comparing two or more items, concepts, or entities to indicate that they are similar in significant ways. Example: "The two products are substantially equivalent in terms of performance and features, making them suitable alternatives for consumers."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

16 human-written examples

The FDA has ruled that they are substantially equivalent to conventionally grown varieties.

The Guardian - Opinion

Companies may apply for a fast track review of new products that are "substantially equivalent" to earlier products.

The New York Times - Health

For relatively uncomplicated devices like a vaginal sling, manufacturers can simply show that their products are "substantially equivalent" to similar devices already on the market.

The New York Times

But when viewed in its entirety, he added, Mr. Klein's "education, training, background and experience are substantially equivalent to the certification requirements set forth in law".

The New York Times

Devices deemed only a "moderate risk" are cleared if the manufacturer can show that they are "substantially equivalent" to devices previously cleared.

The New York Times

"Mr. Levy's education, training, background and experience are substantially equivalent to the requirements set forth in the law," Mr. Mills wrote in a seven-page decision after meeting with the panel yesterday.

The New York Times

Human-verified similar examples from authoritative sources

Similar Expressions

38 human-written examples

There is also doubt that ObTape really was substantially equivalent.

The New York Times

In a report a fortnight ago, it claimed the treaty was substantially equivalent to the rejected constitution.

The Guardian

Those devices in turn may have been cleared because they were "substantially equivalent" to earlier devices that may no longer be in use.

The New York Times

The shorter approval pathway requires companies to show a product is "substantially equivalent" to one already on the market and typically does not require human testing.

The New York Times

Despite this, manufacturers have claimed (and the FDA has historically concurred) that every subsequent AED is substantially equivalent to its antediluvian ancestors from 1976.

The Economist

Expert writing Tips

Best practice

When using "are substantially equivalent", ensure that you can provide clear metrics or evidence to support the claim of equivalence, especially in technical or scientific contexts.

Common error

Avoid using "are substantially equivalent" when there are significant differences. Ensure the features or metrics you're comparing are truly close enough to justify the claim.

Linguistic Context

The phrase "are substantially equivalent" functions as a predicate adjective, describing the relationship between two or more subjects. Ludwig AI, consistent with grammatical norms, identifies it as a valid and usable English phrase. The examples demonstrate its role in expressing similarity or interchangeability.

Expression frequency: Common

Frequent in

Science

37%

News & Media

48%

Formal & Business

6%

Less common in

Wiki

3%

Encyclopedias

0%

Reference

0%

Ludwig's WRAP-UP

The phrase "are substantially equivalent" is a grammatically correct and frequently used expression to denote a high degree of similarity between two or more things. According to Ludwig AI, this phrase is versatile and applicable in varied contexts, including science, news, and formal business settings. Its primary function is to draw a comparison, asserting that while not necessarily identical, the subjects share significant similarities. When using this phrase, ensure that you have adequate evidence to support your claim, particularly in technical or scientific discussions. Alternatives such as "are essentially the same" or "are virtually indistinguishable" can be used to express similar ideas with slightly different nuances.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

are essentially the same

Emphasizes the near identity or indistinguishability between items.

are largely identical

Highlights a high degree of similarity with only minor differences.

are virtually indistinguishable

Suggests that differences are so slight as to be almost impossible to detect.

are effectively equivalent

Focuses on practical equivalence, despite potential theoretical differences.

are almost identical

Indicates a very high degree of similarity, stopping just short of complete identity.

are nearly the same

Highlights a close similarity with minimal deviation.

are closely analogous

Emphasizes similarity in function or structure.

are comparable

Suggests that items can be fairly compared due to notable similarities.

are roughly equivalent

Indicates an approximate level of equivalence, allowing for some variation.

are broadly similar

Suggests a general similarity without necessarily implying a high degree of precision.

FAQs

How can I use "are substantially equivalent" in a sentence?

Use "are substantially equivalent" to indicate that two or more things are very similar in important aspects. For example: "The two treatment options "are substantially equivalent" in terms of patient outcomes".

What phrases can I use instead of "are substantially equivalent"?

Alternatives include "are essentially the same", "are largely identical", or "are virtually indistinguishable", depending on the nuance you wish to convey.

Is it better to say "are substantially equivalent" or "are exactly the same"?

"Are exactly the same" implies complete identity. "Are substantially equivalent" suggests a high degree of similarity but allows for minor differences. Choose the phrase that most accurately reflects the relationship between the items being compared.

What does it mean when the FDA says two medical devices "are substantially equivalent"?

In the context of FDA approvals, "are substantially equivalent" means that a new device is similar enough to an existing legally marketed device that it does not require the same rigorous pre-market approval process as a completely novel device.