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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
are synonyms
Grammar usage guide and real-world examplesUSAGE SUMMARY
"are synonyms" is correct and usable in written English.
It is used when comparing two words that have similar meanings. For example: - "The words 'happy' and 'joyful' are synonyms." - "The terms 'intelligent' and 'smart' are synonyms." - "In this context, 'wealthy' and 'rich' are synonyms." - "When writing an essay, it is important to avoid using synonyms in the same sentence."
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(1)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
Wikipedia claims these are synonyms.
In architecture, ugliness and contempt are synonyms.
News & Media
The words instance and object are synonyms.
Academia
And there are synonyms aplenty for Mascarille's nominal master, Lelie.
News & Media
Give or take a vowel, vocation and vacation are synonyms.
News & Media
A woman is the giver of life, she safeguards life, so 'Woman' and 'life' are synonyms".
News & Media
"Even if you do not use the word Jew, there are synonyms.
News & Media
The zoologists' mantra is that change is the only constant; decay and growth are synonyms.
News & Media
Certain DEC F-key verb names are synonyms for others, e.g. e.g. \KDecF15 = \KdecHelp.
Academia
Ethylene and acetylene are synonyms in the IUPAC nomenclature system for ethene and ethyne, respectively.
Encyclopedias
Spelling Insurance "Insure" and "ensure" are synonyms, although "ensure," meaning "guarantee," is more literary, or at least seems more British.
News & Media
Expert writing Tips
Best practice
When clarifying the relationship between two terms, use "are synonyms" to establish their interchangeable nature. This ensures clarity and avoids ambiguity in your writing.
Common error
Avoid assuming complete interchangeability between words labeled as synonyms. While they share similar meanings, subtle differences in connotation or context may exist. Always consider the specific nuance you wish to convey.
Source & Trust
81%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "are synonyms" functions as a relational statement, indicating that two or more words possess similar or identical meanings. It is primarily used to clarify vocabulary and enhance understanding, as confirmed by Ludwig's examples.
Frequent in
News & Media
33%
Academia
23%
Science
23%
Less common in
Encyclopedias
7%
Wiki
7%
Formal & Business
7%
Ludwig's WRAP-UP
In summary, the phrase "are synonyms" is a grammatically sound and frequently used expression for indicating that two or more words share similar meanings. According to Ludwig, it's a relational statement used to define semantic relationships, found across various contexts including news, academia, and science. The phrase is best used to clarify vocabulary, though writers should be mindful of subtle contextual differences between synonyms. Related phrases include "function as synonyms" and "can be used interchangeably". By avoiding overstatements of interchangeability and using the phrase to enhance clarity, writers can leverage "are synonyms" effectively.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
function as synonyms
Emphasizes the functional equivalence of the terms.
can be used interchangeably
Highlights the substitutability of the words in a sentence.
share a similar meaning
Focuses on the semantic overlap between the words.
have equivalent meanings
Stresses the equal value of the words' definitions.
are considered equivalent
Highlights that the synonymy is a matter of convention or judgment.
correspond in meaning
Indicates a close alignment of the words' senses.
are near equivalents
Acknowledges that the words are similar but not perfectly identical.
relate semantically
Focuses on the connection between the words' meanings.
mean the same thing
Simplifies the concept of synonymy to its core idea.
are closely related in meaning
Emphasizes the strong semantic connection between the words.
FAQs
How can I use "are synonyms" in a sentence?
You can use "are synonyms" to explain that two or more words have the same or similar meaning. For example, "The words 'begin' and 'start' "are synonyms"."
What's the difference between "are synonyms" and "are related"?
"Are synonyms" indicates a close similarity in meaning, while "are related" suggests a broader connection that might not involve direct interchangeability. Synonyms can often be substituted for each other, while related words may simply share a common theme or association.
Which is correct, "are synonyms" or "is a synonym"?
"Are synonyms" is used when referring to multiple words, while "is a synonym" is used when describing a single word in relation to another. For example, "'Happy' and 'joyful' "are synonyms"," but "'Joyful' "is a synonym" of 'happy'."
What can I say instead of "are synonyms"?
You could use phrases like "function as synonyms", "can be used interchangeably", or "share a similar meaning" depending on the specific nuance you want to convey.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
81%
Authority and reliability
4.6/5
Expert rating
Real-world application tested