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Ninety vs. Ninty — Which is Correct Spelling?

By Tayyaba Rehman & Fiza Rafique — Updated on March 20, 2024
"Ninety" is the correct spelling representing the number 90, whereas "ninty" is an incorrect variation. It signifies the number following eighty-nine and preceding ninety-one.
Ninety vs. Ninty — Which is Correct Spelling?

Which is correct: Ninety or Ninty

How to spell Ninety?


Correct Spelling


Incorrect Spelling

Key Differences

Use spell-check features or autocorrect which often automatically corrects "ninty" to "ninety".
Relate "ninety" to "nine" which clearly starts with "nin-".
Picture a 90 in your mind and associate it directly with "ninety".
Recall that other numbers ending in -ty (like seventy or eighty) also use the full base number spelling.
Think of the rhyme: “It’s a crime to forget the nine in ninety.”

How Do You Spell Ninty Correctly?

Incorrect: He ran ninty meters before he started to slow down.
Correct: He ran ninety meters before he started to slow down.
Incorrect: Their grandmother is turning ninty years old next month.
Correct: Their grandmother is turning ninety years old next month.
Incorrect: I can do ninty push-ups in a row without stopping.
Correct: I can do ninety push-ups in a row without stopping.
Incorrect: She thought she had ninty dollars in her wallet, but she actually had less.
Correct: She thought she had ninety dollars in her wallet, but she actually had less.
Incorrect: The recipe called for ninty grams of sugar, which seemed like a lot.
Correct: The recipe called for ninety grams of sugar, which seemed like a lot.

Ninety Definitions

"Ninety" can be used to describe a set or group of ninety.
She has a collection of ninety stamps.
"Ninety" also indicates age.
My grandmother lived until she was ninety.
The cardinal number equal to 9 × 10.
A decade or the numbers from 90 to 99
My grandparents are in their nineties. During the heat wave, the temperature stayed in the nineties.
Often Nineties The decade from 90 to 99 in a century.
The cardinal number occurring after eighty-nine and before ninety-one, represented in Roman numerals as XC and in Arabic numerals as 90.
Nine times ten; eighty-nine and one more; as, ninety men.
The sum of nine times ten; the number greater by a unit than eighty-nine; ninety units or objects.
A symbol representing ninety units, as 90 or xc.
The cardinal number that is the product of ten and nine
Being ten more than eighty
"Ninety" refers to the number equivalent to the product of nine and ten; 10 less than one hundred.
The temperature reached ninety degrees today.
In percentages, "ninety" signifies 90% of the whole.
The quiz grade was a satisfactory ninety percent.
As a fraction, "ninety" can represent 90/100.
Ninety out of a hundred people surveyed preferred the new design.

Ninety Meaning in a Sentence

She saved ninety percent of her allowance for a new bike.
It took them ninety minutes to complete the exam.
Ninety students participated in the science fair this year.
There were ninety pieces in the puzzle box.
He drove ninety miles to visit his family for the weekend.
She aimed to read at least ninety books by the end of the year.
The temperature reached ninety degrees in the shade.
The ancient tree was nearly ninety feet tall.
The farmer planted ninety rows of corn in his field.
The company donated ninety computers to the local school.
The survey received responses from ninety percent of the residents.
Ninety seconds is all it takes for the microwave to heat up the meal.
The game has ninety levels, each more difficult than the last.
Ninety players competed in the chess tournament.
The baker prepared ninety loaves of bread for the festival.
She practices piano for ninety minutes every day.
Ninety volunteers signed up to help clean the beach.
He filled the tank with ninety liters of water for the fish.
The challenge was to find ninety different species of birds in the area.
It's ninety days until the start of summer vacation.
The building has ninety steps from the bottom to the top.
She jogged ninety laps around the park this month.
The charity event raised ninety thousand dollars.

Ninety Idioms & Phrases

Go ninety miles an hour

To do something very quickly or to be very busy.
She's been going ninety miles an hour all week to finish the project on time.

Ninety-nine times out of a hundred

Almost always; almost in every case.
Ninety-nine times out of a hundred, you'll find him in his studio painting.

A ninety-degree turn

A complete change in direction or approach.
The plot takes a ninety-degree turn halfway through the movie, surprising everyone.

Ninety-nine percent sure

Almost completely certain about something.
I'm ninety-nine percent sure that we have a test tomorrow.

Common Curiosities

What is the root word of ninety?

The root word is "nine".

Why is it called ninety?

It’s called ninety because it’s derived from Old English "nigontig," related to the number nine.

What is the verb form of ninety?

Ninety doesn't have a verb form as it's a number.

What is the plural form of ninety?

Numbers don't have a plural form.

Which article is used with ninety?

It usually doesn't use an article, but "a" or "the" can be used in certain contexts.

What is the singular form of ninety?

Ninety does not have a singular or plural form; it represents the number 90.

Is ninety a negative or positive word?


What is the pronunciation of ninety?


Which vowel is used before ninety?

The vowel "e" is used before ninety.

Is the ninety term a metaphor?

Not inherently, but it can be used metaphorically in some contexts.

Is the word ninety is imperative?


Which preposition is used with ninety?

Various prepositions can be used, such as "over," "under," or "at" depending on the context.

Which conjunction is used with ninety?

Standard conjunctions (e.g., and, or, but) can be used, depending on the sentence structure.

Is the word “ninety” a Direct object or an Indirect object?

It can serve as either, depending on the structure and meaning of the sentence.

Which determiner is used with ninety?

Determiners like "about," "nearly," or "over" can be used.

Is ninety a noun or adjective?

It can be both, depending on its use in a sentence.

Is ninety an abstract noun?


Is ninety a vowel or consonant?

It's a word (representing a number) and contains both vowels and consonants.

Is ninety a countable noun?

Numbers themselves are not countable.

How do we divide ninety into syllables?


What is a stressed syllable in ninety?

The first syllable "nin" is stressed.

What part of speech is ninety?

It can be a noun or an adjective.

What is another term for ninety?


What is the opposite of ninety?

There isn't a direct antonym for numbers.

Is ninety an adverb?


Is ninety a collective noun?


Is the word ninety is Gerund?


How many syllables are in ninety?


How is ninety used in a sentence?

"The book has ninety pages."

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Author Spotlight

Written by
Tayyaba Rehman
Tayyaba Rehman is a distinguished writer, currently serving as a primary contributor to As a researcher in semantics and etymology, Tayyaba's passion for the complexity of languages and their distinctions has found a perfect home on the platform. Tayyaba delves into the intricacies of language, distinguishing between commonly confused words and phrases, thereby providing clarity for readers worldwide.
Co-written by
Fiza Rafique
Fiza Rafique is a skilled content writer at, where she meticulously refines and enhances written pieces. Drawing from her vast editorial expertise, Fiza ensures clarity, accuracy, and precision in every article. Passionate about language, she continually seeks to elevate the quality of content for readers worldwide.

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