Your English writing platform
Discover LudwigSuggestions(1)
The phrase "a principal source" is correct and usable in written English.
It can be used to refer to the main or most important origin of information, materials, or resources in a given context.
Example: "The research paper identified a principal source of data that significantly influenced the findings."
Alternatives: "a primary source" or "a key source".
Exact(54)
Fishing boats and nets, a principal source of income here, were gone.
And during this period, money flowed in and out of a principal source: real estate.
Students have always been a principal source of seasonal vineyard workers.
A principal source of Marija's unhappiness in the past two years has apparently been her mother.
Fujian province is a principal source of the overseas Chinese population.
Natural resources are a principal source of the cash these kleptocrats capture.
Profits are a principal source of money for expansion, the other being loans.
Archaeological investigations are a principal source of knowledge of prehistoric, ancient, and extinct culture.
Unanticipated structural asymmetry in the trimer was a principal source of variation within the RH3 structure.
The densely populated, hardscrabble mountain villages of Sichuan province, like Gaoshi, have become a principal source of women for sale.
The deficit has arisen because China has displaced other countries as a principal source of supply of labor-intensive commodities.
Write better and faster with AI suggestions while staying true to your unique style.
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