Gain access to thousands of additional definitions and advanced search features—ad free! JOIN NOW
: ditch, moat
14th century, in the meaning defined above
Middle English fosse, borrowed from Anglo-French, going back to Latin fossa "ditch, trench," noun derivative from feminine of fossus, past participle of fodere "to jab, dig" — more at fossil entry 1
Keep scrolling for more
Resources for fosse
Time Traveler for fosse
See more words from the same century
More from Merriam-Webster on fosse
See words that rhyme with fosse
Thesaurus: All synonyms and antonyms for fosse
Comments on fosse
What made you want to look up fosse? Please tell us where you read or heard it (including the quote, if possible).
something that serves to warn or remind
Get Word of the Day daily email!
Autumn Words of the Day 2018
Test your visual vocabulary with our 10-question challenge!
Test Your Knowledge - and learn some interesting things along the way.
Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!
Taking a usage peeve to task
You can't shut them up, but you can label them
The complaint comes first; the suit follows.
New words that came from bigger words
And is one way more correct than the others?
The story of an imaginary word that managed to sneak past our editors and enter the dictionary.
How to use a word that (literally) drives some people nuts.
The awkward case of 'his or her'
(Secret October WOTD Quiz)
Name that government! Or something like that.
Listen to the words and spell through all three levels.