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Definition of moss
moss
/mɔːs/
moss
Plural:mosses
•Adjective:mossy
•Past Simple:mossed
•Past Participle:mossed
•Present Participle:mossing
moss Lexical Profile
CEFR
B2
Grade
4
Tier
1
Usage
Top 5k
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Wordle Guess
• noun
1
A small, non-vascular, spore-bearing plant belonging to the division Bryophyta, typically growing in dense green clumps or mats in damp, shady locations.
Example
"The ancient stones of the castle wall were completely covered in bright green moss."
2
Scottish A peat bog or marshy area, especially in northern regions of Great Britain.
Example
"They carefully hiked across the treacherous moss, avoiding the deep pools of dark water."
Synonyms
View all synonyms for moss• verb
1
To cover or become covered with moss.
Example
"Over the decades, the damp forest climate had heavily mossed over the forgotten marble statues."
• Rhymes for moss
• Nearby Words
Word Origin & Etymology
From Old English 'mos' (bog, moss), derived from Proto-Germanic '*musą' (moss, bog), ultimately from Proto-Indo-European '*meus-' (damp).
Cite this Entry
Wordmom. (2026). Definition of Moss. In Wordmom Dictionary. Retrieved Oct 14, 2026, from https://wordmom.com/dictionary/moss