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
Literary Hub, 10 Nov. 2025
Monitor Nighttime Temperatures Don’t wait until the first frost warning to get your mandevilla ready to come indoors.
—Leanne Potts, Better Homes & Gardens, 10 Nov. 2025
Krissy Tiglias, Southern Living, 7 Nov. 2025
Coat in frosting, top with the second layer, top-side up, and frost the top and sides of the cake.
—Karla Walsh, Better Homes & Gardens, 6 Nov. 2025
See All Example Sentences for frost
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Noun
Somewhere within the murky snowfall and frost, evening is falling, and the April darkness squeezes between snowflakes that pile up on the man and the two horses.
—Literary Hub, 10 Nov. 2025
Monitor Nighttime Temperatures Don’t wait until the first frost warning to get your mandevilla ready to come indoors.
—Leanne Potts, Better Homes & Gardens, 10 Nov. 2025
Verb
This apple dessert is perfectly spiced and iced with a decadent cream cheese frosting.
—Krissy Tiglias, Southern Living, 7 Nov. 2025
Coat in frosting, top with the second layer, top-side up, and frost the top and sides of the cake.
—Karla Walsh, Better Homes & Gardens, 6 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 13 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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