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
it opened fast
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "it opened fast" is correct and usable in written English.
You can use it to describe something that opened quickly, such as a door, a container, or a program on a computer. Example: "The new app was impressive; it opened fast and had a user-friendly interface."
✓ Grammatically correct
News & Media
Wiki
Science
Alternative expressions(3)
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
1 human-written examples
It was for a time the envy of the former communist world, as it opened fast to the West and embraced the trappings of consumerism: the banks and department stores, the McDonald's restaurants and the fancy cosmetics shops.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
It requires a high-horsepower, newish computer (Mac OS X 10.7 or Windows 7 and later), but it opens faster than before.
News & Media
Opportunities to learn it are opening faster than for any other language except Spanish.
News & Media
Instead of cooking, chefs have opened fast-casual chains, pursued television deals, hawked toothpaste.
News & Media
The points-based system should be scrapped and the door opened faster and wider.The second problem is bigger.
News & Media
Things open fast, scroll fast, load fast.
News & Media
He played for the Yorkshire second team as an opening fast bowler – to me he was a gorgeously heroic man.
News & Media
The opportunity there is opening fast in part due to the broad use of open-source.
News & Media
The overture to Princess Ida, for instance, has only an opening fast section and a concluding slow section.
Wiki
Miller thus played as a middle-order batsman batting at No. 5 ahead of the wicket-keeper and the other bowlers, and an opening fast bowler, partnering Lindwall.
Wiki
Michael von Bertele told the Guardian that Save the Children had been put under massive pressure to get the flagship centre open faster than it thought was possible – in buildings that were not well designed for the purpose.
News & Media
Expert writing Tips
Best practice
When describing the speed of a program loading, use "it opened fast" to convey efficiency and a positive user experience.
Common error
Avoid overusing "fast" as an adverb; while acceptable, "quickly" often provides a more formal and precise alternative in writing. For example, consider "it opened quickly" instead of "it opened fast" in formal contexts.
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "it opened fast" functions as a descriptive statement, characterizing the speed at which something transitioned to an open state. As shown by Ludwig, it is more common in describing programs or systems than physical objects.
Frequent in
News & Media
42%
Wiki
33%
Science
12%
Less common in
Formal & Business
7%
Reference
3%
Encyclopedias
3%
Ludwig's WRAP-UP
In summary, the phrase "it opened fast" is used to describe the speed at which something becomes accessible or operational. Ludwig AI confirms it's grammatically correct. While generally acceptable, "it opened quickly" might be preferred in more formal contexts. The phrase is most commonly found in news and media and wiki sources, and it's often used to highlight the efficiency of programs or systems. Consider the context and formality when choosing between "fast" and "quickly".
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
it sprang open quickly
Emphasizes the sudden and rapid nature of the opening action.
it burst open suddenly
Emphasizes a forceful and immediate opening.
it unsealed rapidly
Focuses on the swift removal of a seal or closure.
it flipped open swiftly
Indicates a fast, hinged opening action.
it parted quickly
Describes a fast separation or division.
it became accessible quickly
Highlights the rapid transition to a state of accessibility.
it unfolded rapidly
Suggests a fast and complete unfolding action.
it unlocked immediately
Suggests that the mechanism for opening disengaged without delay.
it became operational quickly
Highlights the speed with which something became ready for use.
it released swiftly
Emphasizes a fast release or discharge.
FAQs
What does "it opened fast" mean?
The phrase "it opened fast" describes something that became accessible or operational very quickly. It indicates a rapid transition from a closed or inactive state to an open or active one.
What can I say instead of "it opened fast"?
You can use alternatives such as "it opened quickly", "it became accessible quickly", or "it sprang open quickly" depending on the specific context.
Is "it opened fast" grammatically correct?
Yes, "it opened fast" is grammatically correct, although "it opened quickly" might be preferred in more formal writing.
How can I use "it opened fast" in a sentence?
You can use "it opened fast" to describe the speed of various processes or actions, such as "The new app was impressive; "it opened fast" and had a user-friendly interface".
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
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested