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
act respectively
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "act respectively" is not correct in English; it should be "act respectively" if you mean to indicate that two or more subjects are acting in a manner that corresponds to their respective roles or situations.
You can use it when discussing actions taken by different parties that are appropriate to their individual circumstances. Example: "The manager and the employee will act respectively according to their roles during the meeting."
⚠ May contain grammatical issues
Science
News & Media
Wiki
Alternative expressions(4)
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
10 human-written examples
So do Leo Hindery and Amos Hostetter, the cable television titans who are buying smaller stakes, and will act, respectively, as the network's chief executive and chairman.
News & Media
The separations of peaks were 210, 188 and 398 mV between AA and DA, DA and ACT and AA and ACT, respectively.
Science
ENSO and PDO act respectively at interannual and decennial scales with variable periods ranging respectively from 2.5 to 7 years and from 20 to 30 years (Mantua et al. 1997; Philander 1983).
These particular truth degrees act, respectively, like the traditional truth values "falsum" and "verum" – but sometimes also like "absolutely false" and "absolutely true", particularly in cases in which the traditional truth values of classical logic "split" into a series of truth degrees.
Science
1972) —both brought by U.S. Attorney for the District of New Jersey, Herbert Jay Stern (later a federal judge)—were the first prosecution of political corruption pursuant to the economic fear prong and the "under color of official right" prong of the Hobbs Act, respectively.
Wiki
The INK4a/ARF tumor suppressor locus encodes for p16Ink4a and p19Arf, which act respectively through the Rb and p53 cell death pathways [ 80].
Science
Human-verified similar examples from authoritative sources
Similar Expressions
50 human-written examples
That is great news for Drake, Kendrick Lamar and Avicii, the Friday headliner and Saturday closing acts, respectively.
News & Media
A three-act opera, Muzio Scevola, was looked upon as a public competition, with Bononcini and Handel composing the second and third acts, respectively.
Encyclopedias
where ETX and ERX are the energies (dimension: [J]) consumed by single-packet transmission and reception acts, respectively.
Title II and Title III, the Access to Capital for Job Creators and Crowdfunding Acts respectively, focused on early-stage companies, aiming to make the startup financing process more accessible and efficient.
News & Media
In cell-based assays, 0.3 and 0.6 μM of drug acted, respectively, synergistically and additively/antagonistically with radiation, similar to the outcome in xenograft experiments (Fig. 2).
Expert writing Tips
Best practice
When aiming to convey that individuals or entities should behave in a manner appropriate to their specific roles or situations, use more grammatically sound alternatives such as "act accordingly" or "respond appropriately".
Common error
Avoid using "act respectively" as a direct phrase. It's grammatically awkward. Instead, rephrase your sentence to clearly indicate who is acting and how their actions correspond to their roles or positions.
Source & Trust
77%
Authority and reliability
3.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "act respectively" is intended to function as a directive or descriptive phrase, indicating how individuals or entities should or do behave in relation to their specific roles. However, it is grammatically awkward.
Frequent in
Science
50%
News & Media
20%
Wiki
20%
Less common in
Formal & Business
0%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, while the phrase "act respectively" aims to convey the idea of individuals behaving in accordance with their specific roles or circumstances, it is generally considered grammatically incorrect. Ludwig AI underscores this point. Instead, it's advisable to use alternatives such as "act accordingly", "respond appropriately", or "perform their respective duties" for clearer and more accurate communication. Although it appears in various contexts like Science, News & Media and Wiki, its infrequent usage and grammatical issues warrant caution.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
perform their respective duties
Emphasizes specific tasks or responsibilities.
behave in accordance with their roles
Highlights the alignment of behavior with defined roles.
respond as appropriate
Focuses on suitable reactions based on the situation.
take action accordingly
Stresses the adaptation of actions to circumstances.
operate in their designated capacity
Highlights functioning within a specific role or function.
fulfill their individual obligations
Focuses on meeting specific responsibilities separately.
carry out their assigned tasks
Emphasizes the execution of particular duties.
function in their determined capacity
Highlights operating within a specific and predefined role.
conduct themselves individually
Focuses on the individual manner of behavior.
react in their own way
Emphasizes personal and distinct reactions.
FAQs
Is "act respectively" grammatically correct?
According to Ludwig, the phrase "act respectively" is not correct in English. It's better to use phrases like "act accordingly" or "respond appropriately" depending on the context.
What are some alternatives to "act respectively"?
Instead of "act respectively", you could say "perform their respective duties", "behave in accordance with their roles", or "respond as appropriate".
How can I use "act accordingly" instead of "act respectively"?
Use "act accordingly" when you want to express that actions should be taken in a way that is suitable for the situation. For example, "The team members will "act accordingly" based on the project's needs".
What is the difference between "act respectively" and "act accordingly"?
"Act accordingly" means to act in a way that is suitable for the situation, whereas "act respectively" is not grammatically correct. It's better to use phrases like "perform their respective duties" if you want to convey that different parties should act in a manner that corresponds to their specific roles.
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
77%
Authority and reliability
3.5/5
Expert rating
Real-world application tested