Used and loved by millions
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
equal age
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "equal age" is correct and usable in written English.
It can be used to describe individuals or entities that share the same age or are of the same age group. Example: "The twins are of equal age, making it difficult for their friends to tell them apart."
✓ Grammatically correct
Science
News & Media
Formal & Business
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
49 human-written examples
To generate "equally spaced bins," we defined nine bins of equal age span.
Science
Sedimentary rocks, such as the quarry's limestone, are deposited in layers of equal age.
News & Media
Fossils from this chronospecies were subsequently recovered from Late Miocene sediments of equal age in the Gona study area.
Encyclopedias
That meant living down his vote against an equal age of consent for gay men in 1998.
News & Media
"I just saw Helen Mirren the other day; she's lovely, but, you know, she doesn't play a wife or a girlfriend of somebody of equal age".
News & Media
There is disagreement within the company about this modernization, and on opposing sides are two women of almost equal age but with starkly different visions of the future.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
11 human-written examples
The strength results obtained are in agreement with those that presents the international literature for equal aging and water/binder ratio.
The answer is 3, or y, but for all practical purposes Z might as well equal aging and dying all alone.
News & Media
In addition, the training cohort was divided into three equal age-independent subcohorts consisting of 105 ADHD and 105 control recordings apiece, each with a similar age distribution covering the entire range, by dividing each of the age groups into three equal parts, to enable investigation of the variability of age-independent classifiers trained on different data sets.
Science
This pattern could be a consequence of the fact that, at equal ages, girls can enter puberty up to two years earlier than boys [ 26, 27] - therefore, more girls would have reached higher pubertal stages.
Science
An experiment was designed in an attempt to unconfound the period of deployment (equals age of succession) from the time-period during which AUHs were deployed.
Expert writing Tips
Best practice
When comparing groups, specify that they are of "equal age" to control for age-related variables in your analysis.
Common error
Avoid assuming causality when comparing groups of "equal age" without considering other potentially influential factors.
Source & Trust
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "equal age" functions as a modifier (adjective) followed by a noun. Ludwig indicates that it's used to describe a state of being where two or more entities share the same age. It commonly appears in contexts where age is a relevant factor for comparison or categorization.
Frequent in
Science
47%
News & Media
43%
Formal & Business
10%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "equal age" is a grammatically correct and commonly used term to describe things that are of the same age, as confirmed by Ludwig. It is frequently encountered in scientific, news, and formal business contexts. When using the phrase, remember that it's often employed to control for age as a variable in comparisons or research. While "equal age" is valid, alternatives such as "same age", "similar age", or "comparable age" may offer greater precision or stylistic variety.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
same age
Uses a more common synonym for "equal".
of the same age
Rephrases "equal age" with a slightly different grammatical structure.
identical age
Emphasizes the exactness of the age match.
equivalent age
Highlights the comparability or equivalence of ages.
matching age
Focuses on the act of ages being matched or paired.
comparable age
Suggests that the ages are similar but not necessarily identical.
similar age
Indicates a close but not necessarily exact age.
aged equally
Focuses on the process of aging to the same extent.
in the same age bracket
Refers to belonging to the same age group.
of corresponding age
Implies a relationship or correspondence in age.
FAQs
What does "equal age" mean?
The term "equal age" refers to individuals, objects, or groups that are of the same age or within the same age range. It is used to denote a similarity or equivalence in age.
How can I use "equal age" in a sentence?
You can use "equal age" to compare or contrast different subjects based on their age. For instance: "The study compared men and women of "similar age" to assess the impact of diet on heart disease."
What are some alternatives to "equal age"?
Alternatives to "equal age" include phrases such as "same age", "identical age", or "comparable age". The choice depends on the specific context and the nuance you want to convey.
When is it important to consider "equal age" in research?
It's important to consider "equal age" in research when you want to minimize the influence of age as a confounding variable. By comparing subjects of "equivalent age", you can more accurately assess the effects of other factors under investigation.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested