one and the same

USAGE SUMMARY

The phrase "one and the same" is correct and usable in written English.
It is used to refer to two things that are essentially identical. Here is an example: "Although my sister and I are two different people, in many ways we are one and the same."

✓ Grammatically correct

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

They're one and the same.

The New Yorker

It's one and the same".

The New York Times

The issues are one and the same.

Cornell University

It is one and the same struggle.

The Guardian - Opinion

"For us it's one and the same".

The Guardian

It is one and the same campaign.

The Guardian

One belief is that they are one and the same.

Massachusetts Institute of Technology

Dehumanization and "desacralization" are one and the same.

The New Yorker

The GOP and Trump are indeed one and the same.

The Washington Post

The two freedoms are ultimately one and the same.

The New Yorker

At one and the same time two worthy difficulties.

The New York Times - Books

Expert writing Tips

Best practice

Use "one and the same" to emphasize that two seemingly different things are essentially identical or have the same effect. This adds clarity and force to your statement.

Common error

Avoid using "one and the same" when only similarity, not exact equivalence, is intended. Using "similar" or "related" is more appropriate when there are notable differences.

Linguistic Context

The phrase "one and the same" functions primarily as a predicate adjective, modifying a noun or pronoun to indicate that two entities are identical or equivalent. Ludwig confirms its grammatical correctness and usability.

Expression frequency: Very common

Frequent in

News & Media

72%

Academia

13%

Formal & Business

5%

Less common in

Science

5%

Encyclopedias

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "one and the same" is a common and grammatically sound way to express that two things are essentially identical. Ludwig AI validates its correctness and broad applicability, noting its prevalence across diverse fields like news, academia, and general conversation. When employing this phrase, ensure that genuine equivalence is intended to avoid misrepresenting the relationship between the subjects. Alternative phrases, such as "identical" or "equivalent", offer similar meanings with subtle variations in emphasis.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

identical

Focuses on the complete likeness or indistinguishability of the subjects.

the same thing

A more literal rephrasing, directly stating that the subjects are the same.

equivalent

Highlights the equal value or effect of the subjects.

indistinguishable

Emphasizes the inability to perceive any differences between the subjects.

equal

Stresses the equality in measure, quantity, or value.

interchangeable

Highlights the ability to use the subjects in place of each other without altering the outcome.

alike

Indicates a similarity or resemblance, though not necessarily complete identity.

duplicate

Refers to an exact copy or replica.

carbon copy

Suggests a precise replication, often used figuratively.

of the same kind

Highlights that the subjects belong to the same category or class.

FAQs

How can I use "one and the same" in a sentence?

Use "one and the same" to indicate that two things are essentially identical. For instance, "In this context, the terms 'efficiency' and 'productivity' are "one and the same"".

What phrases can I use instead of "one and the same"?

Alternatives include "identical", "equivalent", or "the same thing". The best choice depends on the specific nuance you want to convey.

Is it redundant to say "exactly one and the same"?

While "one and the same" already implies exactness, adding "exactly" can provide additional emphasis, though it may sometimes be perceived as slightly redundant.

What is the difference between "similar" and "one and the same"?

"Similar" indicates a resemblance or likeness, while "one and the same" signifies complete identity or equivalence. Using "similar" is more appropriate when there are notable differences.