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
Chris Dolce, CNN Money, 25 Nov. 2025
In some cases, the frost is severe enough to end the growing season and is then referred to as a 'killing frost'.
—Ca Weather Bot, Sacbee.com, 24 Nov. 2025
Sabrina Weiss, PEOPLE, 24 Nov. 2025
Remove the dish from the oven, allow the rolls to cool for 5 minutes, then spread the cream cheese frosting over the still-warm rolls.
—Karla Walsh, Better Homes & Gardens, 23 Nov. 2025
See All Example Sentences for frost
Examples are automatically compiled from online sources to
show current usage.
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Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
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Noun
Highs in the 20s and 30s are expected across the Upper Midwest and Great Lakes on Thanksgiving, and even some Southern cities will wake up to a frost or freeze by Friday morning.
—Chris Dolce, CNN Money, 25 Nov. 2025
In some cases, the frost is severe enough to end the growing season and is then referred to as a 'killing frost'.
—Ca Weather Bot, Sacbee.com, 24 Nov. 2025
Verb
The latter is an Original Glazed doughnut dipped in chocolate frosting and topped with sprinkles.
—Sabrina Weiss, PEOPLE, 24 Nov. 2025
Remove the dish from the oven, allow the rolls to cool for 5 minutes, then spread the cream cheese frosting over the still-warm rolls.
—Karla Walsh, Better Homes & Gardens, 23 Nov. 2025
See All Example Sentences for frost
Cite this Entry
“Frost.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/frost. Accessed 30 Nov. 2025.
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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