[ thik-uh n ]
/ ˈθɪk ən /

verb (used with or without object)

to make or become thick or thicker.
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
Related formsre·thick·en, verbun·thick·en, verb (used with object) Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for thicken

British Dictionary definitions for thicken


/ (ˈθɪkən) /


to make or become thick or thickerthicken the soup by adding flour
(intr) to become more involvedthe plot thickened
Derived Formsthickener, 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

Word Origin and History for thicken



early 15c. (transitive), 1590s (intransitive), from thick + -en (1). Related: Thickened; thickening. An earlier verb was Old English þiccian.

Online Etymology Dictionary, © 2010 Douglas Harper