A1 noun ニュートラル #3,106 よく出る 2分で読める

frost

/frɒst/

Frost is the delicate white ice that coats surfaces on cold, clear mornings.

30秒でわかる単語

  • A thin, cold layer of ice on surfaces.
  • Forms when temperatures drop below freezing.
  • Usually melts away when the sun rises.

Overview

Frost is a meteorological phenomenon occurring when water vapor in the air comes into contact with a surface that is below freezing. Unlike snow, which falls from the sky, frost forms directly onto objects. It is a hallmark of early winter or late autumn mornings, signaling that the temperature overnight dipped below 0°C (32°F).

Usage Patterns

As a noun, 'frost' is generally uncountable when referring to the substance itself (e.g., 'There is frost on the grass'). However, it can be used in a countable sense when describing a specific instance or a light covering (e.g., 'A light frost damaged the flowers'). It is frequently used as the subject of a sentence in winter weather reports or as an object when describing the appearance of a landscape.

Common Contexts

You will most often hear 'frost' in the context of gardening, driving, and seasonal weather. Gardeners worry about 'killing frosts' that can destroy crops, while drivers often have to 'scrape the frost' off their car windshields before they can safely operate their vehicles. It is also commonly used in literature and poetry to evoke a sense of cold, stillness, or the passage of time.

Similar Words Comparison: 'Frost' is often confused with 'ice' and 'snow'. 'Ice' is a broader term for frozen water in any form, such as on a lake or in a drink. 'Snow' refers to frozen precipitation that falls from clouds in the form of flakes. 'Frost' is specifically the delicate coating that forms on surfaces through deposition, making it distinct from the solid sheets of ice or the falling flakes of snow.

例文

1

There was a light frost on the grass this morning.

everyday

There was a light frost on the grass this morning.

2

The early frost caused significant damage to the autumn harvest.

formal

The early frost caused significant damage to the autumn harvest.

3

I had to scrape the frost off my car before I could drive.

informal

I had to scrape the frost off my car before I could drive.

4

The deposition of frost is a thermodynamic process influenced by local humidity.

academic

The deposition of frost is a thermodynamic process influenced by local humidity.

類義語

ice crystals hoarfrost rime glaze frozen dew

よく使う組み合わせ

heavy frost a thick layer of frost
a touch of frost a small amount of frost
hard frost a severe freezing event

よく使うフレーズ

frost-bitten

damaged by extreme cold

a frost-covered window

a window with ice patterns

nipped by the frost

harmed by cold

よく混同される語

frost vs Ice

Ice is the solid state of water in general. Frost is specifically the thin, crystalline layer that forms on surfaces overnight.

frost vs Snow

Snow is frozen precipitation that falls from clouds. Frost forms directly on surfaces via deposition.

文法パターン

a layer of frost covered in frost the frost melted

How to Use It

使い方のコツ

Frost is typically used as an uncountable noun in general conversation. It is neutral in register, suitable for both casual weather talk and formal scientific writing. Be mindful that 'frost' implies cold, so it is often associated with negative feelings about winter or damage to plants.


よくある間違い

Learners sometimes confuse 'frost' with 'frozen'. Remember that 'frozen' is an adjective describing an object, while 'frost' is the noun for the actual substance. Also, do not use 'frost' as a verb to mean 'freezing' an object; use 'to freeze' instead.

Tips

💡

Use frost with the verb form

You can use the verb 'to frost' to describe covering something in icing or making glass opaque. Remember that as a noun, it refers to the natural ice.

⚠️

Watch out for icy roads

Be careful when you see frost on the ground. It often hides 'black ice,' which makes roads very slippery and dangerous for driving.

🌍

Frost in literature and art

Frost is a common symbol in English literature, often representing the end of a season or the onset of hardship. Artists often use it to depict beauty and silence.

語源

The word comes from the Old English 'frost' or 'forst', which shares roots with the verb 'to freeze'. It has Germanic origins and has remained largely unchanged in spelling for centuries.

文化的な背景

In many cultures, the first frost of the year is a significant marker for the changing of seasons. It often signals the end of the gardening season and the time to prepare for winter weather.

覚え方のコツ

Think of the word 'frost' as sounding like 'frozen' but shorter. If you see a 'frozen' surface, you are likely looking at 'frost'.

よくある質問

4 問

No, they are different. Snow falls from the sky as flakes, whereas frost forms directly onto surfaces like grass or glass.

While it is just frozen water, it is not recommended to eat frost from surfaces because it often collects dust, pollution, or chemicals from the ground.

It is very rare. Frost requires temperatures to drop to freezing, which is unlikely during the summer months in most parts of the world.

This is an idiom used to describe plants that have been damaged or killed by cold temperatures. It suggests that the frost has 'bitten' or touched the plant enough to harm it.

自分をテスト

fill blank

There was a thick layer of ___ on the windshield this morning.

正解! おしい! 正解: frost

Frost forms on cold surfaces like glass during freezing temperatures.

multiple choice

When does frost usually appear?

正解! おしい! 正解: On a clear, cold night

Frost requires cold temperatures, which occur on clear nights when heat escapes into the atmosphere.

sentence building

the / covered / frost / grass / the

正解! おしい! 正解: The frost covered the grass.

This follows the correct Subject-Verb-Object structure.

スコア: /3

Related Content

Weatherの関連語

weather

A1

天気とは、その場所や時間の空の様子です。晴れ、雨、風など、日々の変化を表します。

snowy

A1

Describes a place or time that is covered with snow or has a lot of snow falling. It is often used to talk about winter weather and the white appearance of the ground.

fog

A1

Fog is a thick cloud of tiny water droplets suspended in the atmosphere at or near the earth's surface. it obscures or restricts visibility, making it difficult to see far ahead.

drought

B2

A drought is a prolonged period of time characterized by a lack of precipitation, leading to a severe shortage of water. In a broader sense, it can also refer to a continuous period without a particular item or activity, such as a lack of success in sports.

temperate

A1

穏やか(おだやか)な気候は、暑すぎず寒すぎない気候のことです。一年を通して快適な温度です。

snowflakes

B1

Small, soft, white pieces of frozen water that fall from the sky as snow. Each one is a single ice crystal or an aggregation of crystals.

sunshine

B1

太陽からの直接的な光と熱のこと。また、陽気な人や幸せの源を比喩的に表すこともあります。

storms

B1

Violent atmospheric disturbances characterized by strong winds, precipitation, and often thunder and lightning. Metaphorically, it refers to tumultuous reactions, emotional outbursts, or violent assaults.

wet

A1

濡れているとは、水がかかって水分を含んでいる状態です。雨の日に外に出ると服が濡れます。

rain

A1

雨は雲から落ちてくる水滴のことです。植物が育つためにとても大切なものです。

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