Definition of Eighteen

1. Adjective. Being one more than seventeen.

Exact synonyms: 18, Xviii
Similar to: Cardinal

2. Noun. The cardinal number that is the sum of seventeen and one.
Exact synonyms: 18, Xviii
Generic synonyms: Large Integer

Definition of Eighteen

1. a. Eight and ten; as, eighteen pounds.

2. n. The number greater by a unit than seventeen; eighteen units or objects.

Definition of Eighteen

1. Cardinal numeral. The cardinal number occurring after seventeen and before nineteen, represented in Roman numerals as XVIII and in Arabic numerals as 18. ¹

¹ Source: wiktionary.com

Definition of Eighteen

1. a number [n -S]

Lexicographical Neighbors of Eighteen

eight-pack
eight-packs
eight-penny nail
eight-spot
eight-thousander
eight-thousanders
eight ball
eight hundred
eight o'clock
eight pack
eight packs
eight penny nail
eight thousand
eightball
eighteen (current term)
eighteen-wheeler
eighteen-wheelers
eighteen hundred
eighteen hundreds
eighteenfold
eighteenish
eighteenmo
eighteenmos
eighteenpence
eighteenpences
eighteenpenny
eighteens
eighteenth
eighteenthly

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