意味一覧 (3件)
二度
解説 Definition
この副詞は何かの回数や量が二回分、または二倍であることを示します。比較の文や頻度を説明する文で使われることが多く、たとえば週に二回の予定やある量が二倍になるような場面で用います。同じ動作が二度繰り返されることや、ある数値がその二倍になることをはっきり示す語です。
Twice means two times. It is used to talk about how often something happens or how many times you do something. In some contexts, it can also mean double in amount.
覚え方のコツ Memory Tip
twice は「二度」、つまり同じことが2回起こる・行われるという回数の意味で覚えます。once「一度」、twice「二度」、thrice「三度」と並べると形が見えやすくなります。twice a week「週に二度」、I checked twice「二度確認した」、Call me twice.「二度電話して」のように、頻度や反復を表す文でよく使います。動作や出来事を数える感覚を中心にしましょう。
`Twice` means two times. Learn it together with `once` for one time and the old word `thrice` for three times. It is common in phrases like `twice a week` and `I checked twice`, where it counts how many times an action happens.
例文
His salary is twice as high as mine.
彼の給料は私の2倍の高さです。
I have visited that museum twice already.
私はすでにその博物館に2回訪れたことがあります。
She exercises twice a week to stay healthy.
彼女は健康を保つために週2回運動しています。
2倍
(意味 2)解説 Definition
数量・程度・大きさなどが、ある基準の二つ分であることを表し、「〜の2倍に」「〜の2倍だけ」の意味で使う。twice as ... as や twice the ... の形で、長さ・値段・速さ・量などの比較や倍率を述べるときの基本表現。
Twice means two times as much, two times as many, or two times the degree of something. It is often used in comparison patterns such as “twice as ... as” and “twice the ...” to talk about size, price, speed, amount, and similar measures. It can also mean “two times,” but in this sense it focuses on amount or degree rather than only counting events.
覚え方のコツ Memory Tip
まず `once / twice` をセットで覚えると定着しやすいです。`two times` と同じ内容を、より日常的に短く言う形が `twice`。頻度では `twice a week`、比較では `twice as big as ...` の形が非常によく出ます。「回数が2回」だけでなく「量や程度が2倍」も表せるのがポイント。`double` は形容詞・動詞にもなりますが、`twice` は副詞として文全体を軽く支える語、という違いで整理すると混同しにくいです。
Learn once and twice as a pair: once means one time, and twice means two times. For amounts, think of twice as a short everyday way to say “two times as much.” The patterns “twice as big as ...” and “twice the price” are especially useful. Remember that double can be an adjective or a verb, but twice works as an adverb that supports the whole comparison.
例文
This bag is twice as heavy as mine.
このバッグは私のものの2倍重い。
The new model costs twice the price of the old one.
新しいモデルは古いものの2倍の値段がする。
She can type twice as fast as I can.
彼女は私の2倍の速さでタイピングできる。
二倍
(意味 3)解説 Definition
twice は、数量・大きさ・程度などが基準の2倍であることを表す副詞です。比較では twice as ... as の形でよく使われ、値段、速さ、量、年齢などを比べる場面に向きます。
Twice is an adverb that shows that something is two times as much, as big, as fast, or as high as another thing. It is often used in comparisons with the pattern twice as ... as. This makes it useful when talking about price, speed, amount, age, and other measurable differences.
覚え方のコツ Memory Tip
twice の中心には two「2」があります。回数を表す twice「2回」と同じ形で、比較では「2倍」も表せます。特に twice as big as ...、twice as much as ...、twice as long as ... のように as ... as と組む形をまとめて覚えると便利です。double は名詞・形容詞・動詞としても使えますが、twice は副詞なので、文中で「どれくらい2倍か」を添える役目です。別エントリの「二度」とは、回数ではなく量や程度の比較に集中して区別します。
Notice that twice contains the idea of two. The same word can mean "two times" for frequency, but in comparisons it often means "double," as in twice as big as, twice as much as, or twice as long as. Remember that twice is an adverb, so it adds the idea of how much bigger or more something is.
例文
This bag is twice as expensive as that one.
このバッグはあのバッグの二倍の値段です。
Her new computer runs twice as fast as the old one.
彼女の新しいコンピューターは前のものより二倍速く動きます。
The river is twice as wide in spring after the snow melts.
雪解けの後の春には、その川の幅は二倍になります。
twice の語源・成り立ち Etymology
twiceは古英語系の語で、twoに由来する twi-「二」が核となり、副詞化した形で「二度」を表すようになりました。onceやthriceと並べると、ただの数字ではなく回数を示す語だと分かり、二回くり返す感覚が自然につかめます。
Twice is an old English word built from the same base as two. An older form, twi-, meant "twofold" or "in two ways," and the word became an adverb meaning "two times." It is related in pattern to once and thrice, which also show number turned into repetition.
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