[ fat-n ]
See synonyms for: fattenfattening on Thesaurus.com

verb (used with object)
  1. to make fat.

  2. to feed (animals) abundantly before slaughter.

  1. to enrich: to fatten the soil; to fatten one's pocketbook.

  2. Cards.

    • Poker. to increase the number of chips in (a pot).

    • Pinochle. to play a card that scores high on (a trick) expected to be taken by a partner.

verb (used without object)
  1. to grow fat.

Origin of fatten

First recorded in 1545–55; fat + -en1

Other words from fatten

  • fat·ten·a·ble, adjective
  • fat·ten·er, noun
  • o·ver·fat·ten, verb (used with object)

Words Nearby fatten

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use fatten in a sentence

British Dictionary definitions for fatten


/ (ˈfætən) /

  1. to grow or cause to grow fat or fatter

  2. (tr) to cause (an animal or fowl) to become fat by feeding it

  1. (tr) to make fuller or richer

  2. (tr) to enrich (soil) by adding fertilizing agents

Derived forms of fatten

  • fattenable, adjective
  • fattener, noun
  • fattening, adjective

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