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
Time Traveler Quiz: Which Word Came First?
-
- Which came first?
Test your vocabulary with our 10-question quiz!
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
-
Time Traveler Quiz: Which Word Came First?
Which word entered the English language first?
Take the quiz -
Slippery Words Quiz—Changing with the Times
Do you know these earlier meanings of words?
Take the quiz -
How Strong Is Your Vocabulary?
Test your vocabulary with our 10-question quiz!
Take the quiz -
Word Winder's CrossWinder
Play the game
Share op
Resources for op