1
a
: the process of freezing
b
: a covering of minute ice crystals on a cold surface
also
: ice particles formed from a gas
c
: the temperature that causes freezing
2
a
: coldness of deportment or temperament : an indifferent, reserved, or unfriendly manner
b
: failure
… the play was … a most dreadful frost …—
Arnold Bennett
Arnold Bennett
frosted; frosting; frosts
1
a
: to cover with or as if with frost
especially
: to put icing on (cake)
b
: to produce a fine-grained slightly roughened surface on (such as metal or glass)
2
: to injure or kill (plants) by frost
3
: to make angry or irritated
that really frosts me
: to become frosted
Examples of frost in a Sentence
Noun
The grass was covered with frost.
Frost formed on the window.
These plants should bloom until the first frost of the season.
We had an early frost.
Verb
The cold had frosted the windows.
I have to frost the birthday cake.
Recent Examples on the Web
Brandee Gruener, Southern Living, 28 May 2026
The University's Bermuda grass field suffered damage from the brutal Winter and late frost in April, so Tuckahoe Turf Farms, which is based in Hammonton, is installing Kentucky Blue Grass to help give Haiti's players a smooth transition between training sessions and tournament play.
—Ryan Hughes, CBS News, 28 May 2026
Phoebe Evans, Southern Living, 29 May 2026
Level up your lemon poppy seed cake by pairing it with a floral lavender frosting in this creative recipe.
—Kate Bradshaw, San Diego Union-Tribune, 27 May 2026
See All Example Sentences for frost
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Noun
This can also happen due to a heatwave or frost (or because your plant only flowers during a specific season).
—Brandee Gruener, Southern Living, 28 May 2026
The University's Bermuda grass field suffered damage from the brutal Winter and late frost in April, so Tuckahoe Turf Farms, which is based in Hammonton, is installing Kentucky Blue Grass to help give Haiti's players a smooth transition between training sessions and tournament play.
—Ryan Hughes, CBS News, 28 May 2026
Verb
The real star of the show is the Italian buttercream frosting that pops with raspberry flavor.
—Phoebe Evans, Southern Living, 29 May 2026
Level up your lemon poppy seed cake by pairing it with a floral lavender frosting in this creative recipe.
—Kate Bradshaw, San Diego Union-Tribune, 27 May 2026
See All Example Sentences for frost
Cite this Entry
“Frost.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/frost. Accessed 6 Jun. 2026.
Copy CitationKids Definition
frost
1 of 2 noun1
: the temperature that causes freezing
2
: a covering of tiny ice crystals on a cold surface
frost
2 of 2 verb1
a
: to cover with or as if with frost
especially
: to put icing on (as cake)
b
: to give a surface that looks like frost to
2
: to injure or kill by frost : freeze
Biographical Definition
Frost
biographical name
Robert Lee 1874–1963 American poet
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