Third-person singular simple present indicative form of determine.(verb)
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Use "determines" in a sentence
"The Firefox extension can auto-detect, and auto-convert, any text on a page it determines is an actual article of some depth, or work as a click-to-convert button."
"Eumelanin determines the range from blonde to black."
"He argued that too often the postcode a child is born in determines where he or she ends up."