Dictionary.com
Thesaurus.com
Synonyms

fen

1 American  
[fen] / fɛn /

noun

  1. low land covered wholly or partially with water; boggy land; a marsh.

  2. the Fens, a marshy region W and S of The Wash, in E England.


fen 2 American  
[fen] / fɛn /

noun

  • fen
    plural
  1. an aluminum coin and monetary unit of the People's Republic of China, the hundredth part of a yuan or the tenth part of a jiao.


fen 1 British  
/ fɛn /

noun

  1. low-lying flat land that is marshy or artificially drained

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

fen 2 British  
/ fɛn /

noun

  1. a monetary unit of the People's Republic of China, worth one hundredth of a yuan

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms


Etymology

Origin of fen1

before 900; Middle English, Old English; cognate with Old Norse fen quagmire, Gothic fani mud, Dutch ven, German Fenn fen, bog

Origin of fen2

First recorded in 1905–10, fen is from the Chinese word fēn


Explanation

A fen is a marshy area — a damp, grassy area of ground. If your entire back yard is a fen, you'll want to wear tall rubber boots when you walk your dog. A fen is similar to a marsh, a mire, a swamp, or a bog. In all of these wetland ecosystems, the water level tends to rise and fall, leaving them constantly soggy to some degree. Fens are distinguished by the kinds of plants that grow there, including tall grasses and moss, and by the acidity of the water. The word fen comes from the Old English fenn, which means "mud, mire, dirt, or marsh."

Keep Reading on Vocabulary.com

Vocabulary lists containing fen

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

This enchantment was captured by a 24-year-old Virginia Woolf, who visited an English fen and its surroundings in 1906, and described the area as a “strange, gray-green, undulating, dreaming, philosophizing and remembering land.”

From The Wall Street Journal ● Oct. 9, 2026

The fen, which is an area of low, flat, wet land, is monitored by Natur am Byth's Llŷn and Ynys Môn project, which aims to protect some of north Wales' most at risk species.

From BBC ● Sep. 30, 2026

We stop at a popular shop, newly under a roof, for cheung fen, rice-flour rolls dressed in sesame, soy, and chile, and eat standing up, like before.

From Salon ● Aug. 9, 2026

The council said contractors would use machinery with wide tracks to reduce damage from them to the area of wildflower grassland, marshy fen and wet woodland.

From BBC ● Apr. 29, 2026

It stood tall and firm on the edge of the misty fen.

From "Beowulf: A New Telling" by Robert Nye

Random Word

Spin the wheel and learn a new word!

Get a word

Vocabulary.com logo
by dictionary.com

Just like flashcards, but way more fun

Don't take our word for it. Leave the boring studying behind and join VocabTrainer today. You'll learn even faster and never look back.

Take me to Vocabulary.com