[ thik-uhn ]
See synonyms for: thickenthickenedthickening on

verb (used with or without object)
  1. to make or become thick or thicker.

  2. to make or grow more intense, profound, intricate, or complex: The plot thickens.

Origin of thicken

1375–1425; late Middle English thiknen<Old Norse thykkna.See thick, -en1

Other words from thicken

  • re·thick·en, verb
  • un·thick·en, verb (used with object)

Words Nearby thicken Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use thicken in a sentence

British Dictionary definitions for thicken


/ (ˈθɪkən) /

  1. to make or become thick or thicker: thicken the soup by adding flour

  2. (intr) to become more involved: the plot thickened

Derived forms of thicken

  • thickener, noun

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