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Glite Dictionary
🔢 The number 18 🎂 Aged 18
eighteen

eighteen

216 1.0
The number after seventeen and before nineteen
  • numeral
  • /ˈeɪˌtiːn/
: dieciocho
  • When he turns eighteen next week, he will be able to vote.
  • eighteen years old
  • eighteen years
  • eighteen months

And there were eighteen groups in the Philippines of Agta who were studied for storytelling.

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Examples

  • There are eighteen students in my class this semester.

  • Eighteen years old, from Cuba.

    Death Becomes Her (1992)

  • Do you know the last time that all eighteen of us got together?

  • You are almost eighteen years old.

    Cuckoo (2024)

  • Children spend more than 90 percent of the time between birth and age eighteen outside of school.

    Academic text (1999)

  • The two other families were black, and their sons had both been eighteen years old and cousins.

    Fiction book (1990)

  • " I arrived in Detroit, eighteen years old, entirely free, eager for a new life."

    Fiction book (1990)

  • Bill Weisler was drafted when he was eighteen, and she died while he was in the army.

    Fiction book (1990)

  • Read the news: in the past eighteen months, the global price of staple foods has skyrocketed.

    Academic text (2008)

  • You are eighteen, right?

    The Wrath of Becky (2023)

Synonyms

XVIII
vseighteen
2 4.8

A way to write the number eighteen using Roman numerals

is the same value but written in lowercase letters
xviii
vseighteen
5.0

A Roman way to write the number eighteen

is the same value but written in uppercase letters

How Many

thirty
∞ 1.0
twenty
∞ 1.0
eighteen
216 1.0
fifteen
561 1.0
ten
311 1.0

Surface Forms

eighteen cardinal word
18 cardinal digit
18th ordinal digit
eighteenth ordinal word

Morphology

eighteen = eight (transparent) = eight + teen

Formed from the numeral 'eight' plus the productive numeral suffix '-teen'; learners who know 'eight' and '-teen' can readily infer the meaning.

Etymology

Eighteen comes from two simple parts: eight and teen, where teen originally meant 'ten'. So, eighteen literally means 'ten plus eight', which is why it names the number 18.