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
noticed firsthand
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "noticed firsthand" is correct and usable in written English.
It can be used when you want to express that you have directly observed or experienced something yourself, without relying on secondhand information. Example: "During my travels, I noticed firsthand the impact of climate change on local communities."
✓ Grammatically correct
News & Media
Alternative expressions(16)
experienced directly
witnessed personally
personally observed
gained firsthand knowledge
saw with my own eyes
confirmed personally
see it with your own eyes.
observe directly
see for yourself
observe firsthand
see it with your own eyes
experience personally
witnessed firsthand
witness firsthand
personally verify
experience it directly
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
2 human-written examples
And if you've ever asked your real estate agent to skip past a showing appointment because of a house's unwelcoming exterior, you've noticed firsthand just how important curb appeal really is.
News & Media
But it's hard to dismiss patterns I've noticed firsthand and the overlapping assessments offered by black acquaintances from the U.S. to Zimbabwe to South Africa itself.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
As for my own translations, I have learned enormously from every one of them, even from the bad books – especially from the bad books, because translating them you notice firsthand the shortcuts, the lies, the cheating.
News & Media
Allison Blunt, who teaches middle school science in Harrison, noticed that firsthand.
News & Media
It's your ability to notice your firsthand, direct experience of what's happening no matter if what's happening is good or not so good.
News & Media
Father Tim, one of the priests at the chaplaincy that houses Manchester Central Food Bank, noticed the trend firsthand.
News & Media
King, the owner of the Breakers, noticed the low numbers firsthand, on her night.
News & Media
In my firsthand experience, I've noticed several traits that set apart the candidates we ultimately hire from the ones we don't.
News & Media
However, several findings from our firsthand experience have been noticed to help us approximate the normalizing factor, and we also conclude that some discriminative information of NNLM exists in the unnormalized probability for N-best rescoring in the next two sub-sections.
He's noticed the rise in female ADHD diagnoses firsthand.
News & Media
Liukin's parents initially did not aspire for their daughter to become a gymnast, knowing the pressure of high-level competition firsthand, but relented when they noticed her aptitude for the sport.
Wiki
Expert writing Tips
Best practice
Use "noticed firsthand" to emphasize that your observation comes from direct, personal experience rather than hearsay or secondhand information. This strengthens the credibility of your statement.
Common error
While "noticed firsthand" is grammatically sound, overuse in formal or academic writing can make the tone less objective. Consider using more formal alternatives like "observed directly" or "witnessed personally" in such contexts.
Source & Trust
88%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "noticed firsthand" functions as an adverbial phrase, modifying a verb to indicate that an observation or experience was gained directly and personally. As supported by Ludwig, this emphasizes direct personal experience.
Frequent in
News & Media
66%
Science
17%
Wiki
17%
Less common in
Academia
0%
Formal & Business
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, "noticed firsthand" is a grammatically correct phrase used to emphasize that an observation or experience comes from direct, personal involvement. While Ludwig AI confirms its correctness, the phrase is relatively rare and is mostly found in news and media contexts. When writing, use "noticed firsthand" to strengthen the credibility of your statements. In formal academic or scientific writing, consider more formal alternatives such as "observed directly" or "witnessed personally". Remember that, depending on the context, you can use alternative phrases such as "observed personally", "experienced directly" or "saw for myself".
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
observed personally
Focuses on the act of personally seeing or witnessing something.
witnessed directly
Highlights the direct experience of an event or situation.
personally observed
Similar to "observed personally" but slightly more formal.
experienced directly
Emphasizes the personal involvement in an event or situation.
saw for myself
A more informal way of saying "noticed firsthand", indicating personal verification.
directly perceived
Focuses on the act of sensing something without mediation.
gained firsthand knowledge
Highlights the acquisition of knowledge through direct experience.
had direct experience
Emphasizes the personal involvement in a situation or event.
saw with my own eyes
An idiomatic expression emphasizing personal visual confirmation.
confirmed personally
Implies verification through personal observation or experience.
FAQs
How can I use "noticed firsthand" in a sentence?
"Noticed firsthand" is used to show that you have personal experience or direct knowledge of something. For example, "I "noticed firsthand" the effects of the new policy when I visited the office."
What can I say instead of "noticed firsthand"?
You can use alternatives like "observed personally", "witnessed directly", or "experienced directly" depending on the context.
Is it more formal to say "observed directly" than "noticed firsthand"?
Yes, "observed directly" generally carries a more formal tone compared to ""noticed firsthand"", which can be used in both formal and informal contexts.
What's the difference between "firsthand experience" and "noticed firsthand"?
"Firsthand experience" refers to having direct personal involvement in something, while "noticed firsthand" means you directly observed or became aware of something personally. One refers to the experience itself, and the other refers to the act of observing.
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