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
substitution date
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "substitution date" is correct and usable in written English.
It can be used in contexts where a date is designated for replacing or exchanging something, such as in contracts or agreements. Example: "The substitution date for the materials will be set for next Friday to ensure timely delivery."
✓ Grammatically correct
Academia
Science
News & Media
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
60 human-written examples
as his attorney of record in place of Ralph D. Paonessa and John Oliver,"" " 'and under that: "We consent to the above substitution, dated: January 25 , 1951." " 'Then on the other page there is another signature of Dr. Campbell above "substitution accepted". A. That is correct". " 'Q.
Academia
However, it should be realized that trials comparing the efficacy of brand substitution to date have been unblinded.
In a study on vertebrates, Kumar and Hedges [ 35] estimated gene-specific substitution rates, dated the separate gene trees, and then averaged over the trees to get one dated tree.
Science
This study represents the most comprehensive collection of nrITS substitution rates to date.
Science
R292K is a rare substitution and to date has only been reported in viruses collected from patients treated with oseltamivir (2, 5 ).
Science
However, since most of the observed intraspecific variability was in third positions, which presumably mutate more rapidly, we also estimated their substitution rate to date the expansion events more accurately.
Science
A more rigorous approach was to extrapolate, a linear regression of the % accumulation of 3rd position synonymous substitutions versus the date of isolation back to 0%.
Science
The mean rate of nucleotide substitution estimated from dated IHHNV capsid sequences under assumptions of both strict and relaxed molecular clocks were comparable and unexpectedly high for a DNA virus such as IHHNV.
Science
Initial analyses of paleopolyploidy in Arabidopsis relied on molecular clock estimates of the rate of synonymous substitutions (Ks) to date the age of the various events.
Science
These variations consist mainly of single nucleotide polymorphisms (SNPs) (DNA nucleotide substitutions) and to date more than 6 million have been identified and verified.
Divergence time estimates are necessary to calculate absolute substitution rates, so dating uncertainty should be considered in comparing absolute rates across studies.
Science
Expert writing Tips
Best practice
When using "substitution date" in legal or formal contexts, always clearly define what is being substituted to avoid ambiguity. For example, specify "substitution date for the original clause".
Common error
Avoid using "substitution date" without clearly specifying what is being replaced. Always provide context to ensure the meaning is clear. For example, instead of saying simply "the substitution date", say "the substitution date for the contract clause".
Source & Trust
88%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "substitution date" functions primarily as a noun phrase. It typically acts as a descriptor, specifying the date when a replacement or exchange is scheduled to take place. Ludwig AI indicates this usage is grammatically correct.
Frequent in
Science
60%
News & Media
20%
Formal & Business
20%
Less common in
Academia
20%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "substitution date" is a noun phrase used to denote the date on which something is replaced or exchanged. Ludwig AI confirms it's grammatically correct and suitable for formal contexts, such as legal or scientific documents. While not very common, understanding its appropriate usage ensures clear and precise communication. For alternative phrasing, consider "replacement date" or "exchange date" depending on the specific context. Remember to always clearly define what is being substituted when using this phrase to avoid any ambiguity.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
replacement date
Replaces "substitution" with "replacement", focusing on the act of replacing.
exchange date
Replaces "substitution" with "exchange", highlighting the act of exchanging.
date of replacement
Rearranges the words and uses "replacement" instead of "substitution".
effective date of change
Specifies that the date marks when a change becomes effective.
implementation date of substitution
Emphasizes the date when the substitution is implemented.
switch-over date
Uses "switch-over" to indicate a change or transition.
date of alteration
Uses "alteration" to denote a change or modification.
date of modification
Uses "modification" instead of "substitution".
date of supersession
Uses "supersession", indicating one thing taking the place of another.
commencement date of the alteration
More formal and specifies the "commencement" of the alteration.
FAQs
What does "substitution date" mean?
The "substitution date" refers to the date on which a replacement or exchange is scheduled to occur. It's commonly used in legal, contractual, or technical contexts.
What can I say instead of "substitution date"?
You can use alternatives like "replacement date", "exchange date", or "effective date of change" depending on the context.
How is "substitution date" used in legal documents?
In legal documents, "substitution date" specifies when a clause, term, or party is replaced by another. It provides a clear timeline for the transition.
Is "substitution date" formal language?
Yes, "substitution date" leans towards formal language and is suitable for professional, legal, or academic contexts. For informal situations, "replacement date" might be more appropriate.
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
88%
Authority and reliability
4.1/5
Expert rating
Real-world application tested