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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
have vast knowledge
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "have vast knowledge" is correct and usable in written English.
You can use it when describing someone who possesses a significant amount of information or expertise in a particular area. Example: "As a historian, she has vast knowledge of ancient civilizations and their cultures."
✓ Grammatically correct
News & Media
Wiki
Science
Alternative expressions(14)
possess extensive knowledge
possesses extensive knowledge
have extensive knowledge
have a wealth of knowledge
be highly knowledgeable
have comprehensive knowledge
have deep understanding
be well-versed in
have a strong command of
have expertise in
have considerable knowledge
have substantial knowledge
have broad knowledge
have ample knowledge
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
5 human-written examples
The Navy also commands explosives experts who have vast knowledge of underwater demolitions.
News & Media
You cannot spend 40 to 50 years in football and not have vast knowledge.
News & Media
"Booksense will stress that independent booksellers are local business people, committed to the community, service oriented, who have vast knowledge about the products they sell," said Mr. Teicher, who takes care of the day-to-day operations of the association.
News & Media
I'm very comfortable with the fact that they both have vast knowledge and experience in matters coming before the council; although we don't always agree on a particular matter, we can compromise and move things along in a well thought-out manner, we've worked very well together on various committees, and they both have my best wishes for a successful campaign.
News & Media
Mechanics must have vast knowledge in adjusting, repairing, maintaining and testing all the mechanisms of a car.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
On the US side, that means one of the officials who is here has vast knowledge and experience of the technical detail.
News & Media
"I am really excited to be working alongside Matt Walker as he has vast knowledge of the game and I know he is looking forward to this next chapter of his career".
News & Media
Wikileaks spokesman Kristinn Hrafnsson told the BBC on 24 June that "we have been helping him on two fronts: on one side, our legal team has been in contact and consultation and advising his legal team - for obvious reasons our legal team has vast knowledge in matters of extradition so it's quite natural that they could assist in many ways.
News & Media
With 9 years professional experience including more than 6 years in bioenergy research and project management, she has vast knowledge in the field of biomass market and supply chain analyses, developing regional to international biomass resource concepts for various large market players and is in charge of the annual biomass statistics for Austria.
Science & Research
Though Schafer and others on the Double Fine team had vast knowledge of specific types of metal, Ridgway turned to a used-CD store owner named Allan from Aquarius Records who had "encyclopedic knowledge" of the entire genre, and who provided the team with sample CDs to help them discover some of the more obscure metal bands.
Wiki
The Olympics require presenters to have vast sporting knowledge, or at least an ability to swot up quickly, and there are always some hilarious moments.
News & Media
Expert writing Tips
Best practice
When describing someone's qualifications, use "have vast knowledge" to highlight their broad understanding and experience in a field. For example, "The candidate should "have vast knowledge" of software development methodologies."
Common error
While "have vast knowledge" is suitable for formal and professional settings, avoid overusing "vast" in casual conversation. Alternatives like "know a lot about" or "be really knowledgeable about" may sound more natural in informal contexts.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "have vast knowledge" functions as a verb phrase indicating the possession of extensive information or expertise. It highlights the scope and depth of someone's understanding, as shown by Ludwig's examples.
Frequent in
News & Media
40%
Wiki
30%
Science
30%
Less common in
Formal & Business
0%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, "have vast knowledge" is a grammatically sound and commonly used phrase to describe someone possessing extensive information or expertise. It's appropriate for formal and neutral registers, particularly in news, scientific, and wiki contexts. As suggested by Ludwig, alternatives like "possess extensive knowledge" or "have a wealth of knowledge" can be used for slight variations in meaning. The phrase effectively emphasizes the breadth and depth of an individual's understanding.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
possess extensive knowledge
Replaces the verb "have" with "possess" and "vast" with "extensive", slightly more formal.
have a wealth of knowledge
Uses "wealth" instead of "vast", emphasizing the abundance of knowledge.
have profound knowledge
Substitutes "vast" with "profound", indicating deep understanding.
have comprehensive knowledge
Replaces "vast" with "comprehensive", suggesting thorough and complete understanding.
have deep understanding
Focuses on understanding rather than just knowledge, implying insight.
be highly knowledgeable
Shifts the focus to being knowledgeable as a characteristic.
be well-versed in
Indicates familiarity and expertise in a specific subject.
have a strong command of
Emphasizes control and mastery over a subject.
have expertise in
Highlights specialized skill or knowledge in a particular area.
be an authority on
Positions someone as a leading expert.
FAQs
What does it mean to "have vast knowledge"?
To "have vast knowledge" means to possess a comprehensive and extensive understanding of a particular subject or area. It implies a deep reservoir of information and expertise.
How can I use "have vast knowledge" in a sentence?
You can use "have vast knowledge" to describe someone's expertise. For example, "She "possesses extensive knowledge" in the field of astrophysics."
Which is correct: "have vast knowledge" or "has vast knowledge"?
"Have vast knowledge" is used with plural subjects (e.g., "They have vast knowledge"), while "has vast knowledge" is used with singular subjects (e.g., "He has vast knowledge").
What are some alternatives to saying someone "has vast knowledge"?
Alternatives include "have extensive knowledge", "have a wealth of knowledge", or "be highly knowledgeable", depending on the context.
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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
4.5/5
Expert rating
Real-world application tested