SINCE 1828
op
noun
\ ˈäp
\
\
Definition of op
(Entry 1 of 3)
op
abbreviation (1)Definition of op (Entry 2 of 3)
1
operation; operative; operator
2
opportunity
3
opus
OP
abbreviation (2)Definition of OP (Entry 3 of 3)
1
observation post
2
out of print
Keep scrolling for more
Keep scrolling for more
More Definitions for op
op
noun
English Language Learners Definition of op
British, informal
: a medical operation
chiefly US
: a set of planned actions for a particular purpose
See the full definition for op in the English Language Learners Dictionary
op.
abbreviationLegal Definition of op.
opinion
Comments on op
What made you want to look up op? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Where in the World? A Quiz
-
- What language does pajama come from?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Word Games
-
Where in the World? A Quiz
Do you know what languages these words come from?
Take the quiz -
Advanced Vocabulary Quiz
Tough words and tougher competition.
Take the quiz -
Spell It
Can you spell these 10 commonly misspelled words?
Take the quiz -
Bee Cubed
Listen to the words and spell through all three levels.
Play the game
Share op
Resources for op