Oxford logo
Toggle navigation
Redeem
Upgrade
Help
Sign in
Dictionaries
Dictionaries home
English
American English
Academic
Collocations
German-English
Grammar
Grammar home
Practical English Usage
Learn & Practise Grammar (Beta)
Word Lists
Word Lists home
My Word Lists
Topics
Recent additions
Resources
Resources home
Text Checker
Sign in
Dictionaries
Dictionaries home
English
American English
Academic
Collocations
German-English
Grammar
Grammar home
Practical English Usage
Learn & Practise Grammar (Beta)
Word Lists
Word Lists home
My Word Lists
Topics
Recent additions
Resources
Resources home
Text Checker
Redeem
Upgrade
Help
TOP
American English
English
American English
Academic English
Collocations
Practical English Usage
German-English
English-German
English
American English
Enter search text
Definition of
Neptune noun
from the Oxford Advanced American Dictionary
Neptune
noun
noun
NAmE
/
/
ˈnɛptun
/
/
jump to other results
enlarge image
a planet in the
solar system
that is 8th in order of distance from the sun
See
Neptune
in the Oxford Advanced Learner's Dictionary
Check pronunciation:
Neptune
Nearby words
ne plus ultra
noun
nepotism
noun
Neptune
noun
neptunium
noun
nerd
noun