As a numeral eighteen
is the cardinal number occurring after seventeen and before nineteen, represented in Roman numerals as XVIII and in Arabic numerals as 18.
As an adjective eighteenish is
of about eighteen years of age.
eighteen
Alternative forms
* Arabic numerals: . Roman symbols: XVIII
Numeral
(head)
The cardinal number occurring after seventeen and before nineteen, represented in Roman numerals as XVIII and in Arabic numerals as 18.
Related terms
* Ordinal: eighteenth
eighteenish
English
Adjective
(-)
(informal) Of about eighteen years of age.