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
Synonyms
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
Ashlyn Needham, Southern Living, 11 Dec. 2024
As the car begins heating up and the frost begins to melt, do not go inside your home, but use a scraper and de-icer on the screen to help the frost disappear faster.
—Gordon G. Chang, Newsweek, 11 Dec. 2024
Halee Miller Van Ryswyk, Better Homes & Gardens, 12 Dec. 2024
The igloos are partially frosted so other guests can’t see inside and are outfitted with a large bed and thick, fluffy bedding.
—Kerry Spencer, Condé Nast Traveler, 10 Dec. 2024
See all Example Sentences for frost 
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Noun
Time of Year to Plant The best time to plant your poinsettia seeds or propagations is during March or late spring when the threat of frost has passed.
—Ashlyn Needham, Southern Living, 11 Dec. 2024
As the car begins heating up and the frost begins to melt, do not go inside your home, but use a scraper and de-icer on the screen to help the frost disappear faster.
—Gordon G. Chang, Newsweek, 11 Dec. 2024
Verb
Once baked and frosted with royal icing, thread a festive ribbon through the hole and tie it to hang on your tree.
—Halee Miller Van Ryswyk, Better Homes & Gardens, 12 Dec. 2024
The igloos are partially frosted so other guests can’t see inside and are outfitted with a large bed and thick, fluffy bedding.
—Kerry Spencer, Condé Nast Traveler, 10 Dec. 2024
See all Example Sentences for frost
Dictionary Entries Near frost
Cite this Entry
“Frost.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/frost. Accessed 23 Dec. 2024.
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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