8 entries under plain topic. ×

20
marsh(noun, wild, mess, dry)
20
swamp(noun, flat, wild, mess)
12
marshland(noun, flat, wild, dry)
2
valley(noun, flat)
0
delta(noun, valley)
0
floodplain(noun, valley)
0
mudflat(noun, valley)
0
water meadow(noun, expression, valley)
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APASmart Define. (2015). fen thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/fen/thesaurus/synonyms
ChicagoSmart Define. 2015. "fen thesaurus" https://smartdefine.org/fen/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, fen thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/fen/thesaurus/synonyms>.
MLASmart Define. "fen thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/fen/thesaurus/synonyms>