-ation

noun suffix

: the action or process of doing something

Full Definition of -ATION

: action or process <flirtation> : something connected with an action or process <discoloration>

Latin -ation-, -atio, from -a-, stem vowel of 1st conjunction + -tion-, -tio, noun suffix

-ATION Defined for Kids

noun suffix \ˈā-shən\

: action or process <computation>

: something connected with an action or process <discoloration>

Next Word in the Dictionary: atiptoePrevious Word in the Dictionary: atingleAll Words Near: -ation

What made you want to look up -ation? Please tell us where you read or heard it (including the quote, if possible).

Put-downs with flair

How to use a word that (literally) drives some people nuts.

Test your vocab with our fun, fast game

Ailurophobia, and 9 other unusual fears