-ation

noun suffix

Definition of -ation

:action or process
  • flirtation
:something connected with an action or process
  • discoloration

Origin and Etymology of -ation

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


-ATION Defined for English Language Learners

-ation

noun suffix

Definition of -ation for English Language Learners

  • : the action or process of doing something


-ATION Defined for Kids

-ation

noun suffix \ ˈā-shən \

Definition of -ation for Students

1 :action or process
  • computation
2 :something connected with an action or process
  • discoloration

Seen and Heard

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

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

readily predictable

Get Word of the Day daily email!

Test Your Vocabulary

The Exceptions Quiz III

  • one-green-toy-robot-amidst-many-red-toy-robots
  • Which of these words does not mean "nonsense"?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!