ninety
/'nainti/
Học thuậtThân thiện
Definition
Cardinal Number:
- The number equivalent to the product of ten and nine; 90.
- A symbol representing this number, such as 90 or XC.
Noun (plural: nineties):
- The decade from 90 to 99 in a century, especially the twentieth century (the 1990s).
- The range of temperature, age, or other measurement from 90 to 99.
Adjective:
- Amounting to ninety in number.
Usage Examples
As a Cardinal Number:
- The book has ninety pages.
- Ninety percent of the students passed the exam.
As a Noun (The Nineties):
- My parents were born in the nineties. (This typically refers to the 1990s.)
- Temperatures are expected to be in the nineties this weekend. (Meaning between 90-99 degrees Fahrenheit.)
As an Adjective:
- She is ninety years old.
- I need ninety copies of this document.
Advanced Usage
"Ninety-nine times out of a hundred": An idiom meaning "almost always" or "very frequently."
- Ninety-nine times out of a hundred, this method works perfectly.
"The Gay Nineties": A historical term referring to the 1890s, often characterized as a period of prosperity and cultural change.
Variants and Related Words
- Ninetieth (adj. & n.): Constituting number ninety in a sequence; position 90.
- This is her ninetieth birthday.
- Ninety-one, ninety-two, etc.: The numbers following ninety (91, 92, etc.).
Synonyms
- Four score and ten: An archaic term for ninety.
- XC: The Roman numeral for ninety.
Related Phrases
- In one's nineties: Being between 90 and 99 years of age.
- My grandmother is in her nineties and still very active.
Idioms
- Ninety-nine times out of a hundred: Almost invariably.
- He's late ninety-nine times out of a hundred.
- Ninety-day wonder: (Informal, sometimes derogatory) A person who has received a rapid, short-term commission or training, especially in the military.
Adjective
- being ten more than eighty
Noun
- the cardinal number that is the product of ten and nine