thick·enedthick·en·ing \ˈthik-niŋ, ˈthi-kə-\
a : to become dense <the mist thickened>
b : to become concentrated in numbers, mass, or frequency
: to grow blurred or obscure
: to grow broader or bulkier
: to grow complicated or keen <the plot thickens>
a : to make thick, dense, or viscous in consistency <thicken gravy with flour>
b : to make close or compact
: to increase the depth or diameter of
defined for English-language learners
Examples of THICKEN
- I thickened the gravy with flour.
- When the mixture thickens, add the remaining ingredients.
- The fog thickened when night fell.
First Known Use of THICKEN
: to make or become thick <Wait for the pudding to thicken.>
— thick·en·er noun