accelerating
加速する
解説 Definition
「accelerating」は、速度や進行が速まっていることを表す動詞の現在分詞形です。物理的な速度の増加だけでなく、変化や成長のペースが加速していることにも使われます。技術の進歩や経済成長、あるいは車や乗り物の加速など幅広い文脈で用いられます。
Accelerating is the present-participle form of accelerate and describes increasing speed or causing something to proceed more quickly. It applies both to physical motion, such as a vehicle gaining speed, and to processes whose rate of change, growth, or development is rising.
覚え方のコツ Memory Tip
原形 accelerate「加速する」の語末の無音 e を落として -ing を付けた現在分詞が accelerating で、発音は /əkˈseləreɪtɪŋ/。accelerating car は速度そのものの上昇、accelerating change や expansion は変化・進出のペース上昇を表す。「だんだん速くなる」が共通の核。
Accelerating comes from accelerate: drop the final silent e and add -ing. It is pronounced /əkˈseləreɪtɪŋ/. Keep one central idea—speed or rate is increasing over time. A car is accelerating when it gains physical speed, while a company may be accelerating expansion by making the process move faster. Climate change can also be accelerating when its pace is increasing, even though nothing is literally traveling. Contrast accelerating with fast: fast describes a speed, but accelerating specifically describes a rise in speed or pace.
例文
The car was accelerating rapidly as it merged onto the highway.
その車は高速道路に合流しながら急速に加速していた。
Climate change is accelerating at an alarming rate.
気候変動は驚くべき速さで加速している。
The company is accelerating its expansion into new markets.
その会社は新しい市場への進出を加速させている。
accelerating の類義語・関連語
類義語
紛らわしい語
accelerating の語源・成り立ち Etymology
accelerating は accelerate の現在分詞で、ラテン語 accelerare に由来します。ad-「〜へ」+ celer「速い」が核なので、「速さの方向へ押す」感覚から「加速する」になりました。関連語は acceleration、celerity。
Accelerating is the present-participle form of accelerate, made by replacing the verb's final silent e with -ing. Accelerate comes from Latin accelerare, built from ad-, expressing movement toward, and celer, meaning swift. The Latin verb therefore conveyed making something faster or hurrying it. Modern English preserves both the physical sense of gaining speed and the extended sense of increasing the pace of a process or development.
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