Ninty or Ninety: Which Is Correct?

"Ninty" is a misspelling of "ninety," which is the number 90.

"Ninety" may be difficult to spell because some people may assume that they should drop the "e" in "nine" before adding the "-ty" at the end, which is not the case. You simply need to add "-ty" at the end of "nine" without dropping the "e" to write the correctly spelled "ninety."

Here are other multiples of 1o and their common misspellings:

Twenty (misspelled as "tweny")
Thirty (misspelled as "thirdy")
Forty (commonly misspelled as "fourty")
Fifty (misspelled as "fifthty")
Sixty (misspelled as "sixdy")
Seventy (misspelled as "sevendy)"
Eighty (misspelled as "eigty")
Ninety (commonly misspelled as "ninty" or "nintey")

Integers from 0 to 100 are written out (instead of using Arabic numerals like 0, 1, 2, 3, etc.) in the MLA format, one of the most common writing styles used in the US. Integers greater than 100 in the MLA format would be written with numerals as in 101, 365, and 4,242.

However, in the APA style, another commonly used writing style in the US, only zero to nine are written out and every integer above nine is written with Arabic numerals with the exception of numbers that represent time, dates, ages, scores, and measurements, which are always written in numerals even if they are smaller than 10.

Example sentences

The study revealed that over ninety percent of participants preferred the new product.
According to the census data from 2020, the population of the city is approximately ninety thousand.
The research paper analyzed the effects of a ninety-day exercise program on cardiovascular health.
In her novel, the author explores the challenges faced by a group of individuals in their nineties.
The historical account documented the events that took place during the early nineties.
The women's fashion of the nineties is often remembered for scrunchies, tube tops, and acid-wash jeans.
The technological advancements of the nineties paved the way for the digital revolution in the twenty-first century.
The novel's setting is a small town in the nineties, where the characters navigate the challenges of wartime.
The playwright's work captures the spirit of the nineties, with its focus on conformity and societal norms.
The research project examined the impact of social media on the lives of individuals born in the eighties and nineties.

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