efficiently
efficiently はTOEIC 860・TOEFL 80・IELTS 6.5レベルの英単語で、「効率的に」という意味があります。発音記号は /ɪˈfɪʃəntliː/ です。
効率的に
解説 Definition
効率的に（こうりつてきに）とは、最小限の時間や資源で最大限の結果を得る方法でやることです。ビジネスや学習の場面でよく使われます。
Efficiently means doing something well, quickly, and without wasting time, effort, or resources. It is often used when talking about work, systems, machines, or methods. The word has a positive meaning and suggests good organization or smart use of what is available.
覚え方のコツ Memory Tip
efficiently はまず efficient「効率的な」を軸に覚えるとよく、efficient → efficiently は slow → slowly と同じく -ly で副詞化した形。efficiency「効率」と並べて family で覚えると定着します。work efficiently, use time efficiently, manage resources efficiently の形が頻出。似た effectively は「効果が出るように」で、efficiently は「ムダなく、少ない時間や資源で」が中心。この差をセットで押さえると混同しにくくなります。
Build this from the word family: `efficient`, `efficiency`, `efficiently`. The `-ly` ending tells you it is the adverb form, like `slow` to `slowly`. It is useful to compare it with `effectively`: `efficiently` focuses on saving time, energy, or resources.
例文
We need to work more efficiently to meet the deadline.
締め切りを守るために、より効率的に働く必要があります。
This new tool helps us work more efficiently.
この新しい道具を使うと、より効率的に作業できます。
The team works efficiently and finishes early.
チームは効率的に作業し、早く仕事を終えます。
efficiently の類義語・関連語
efficiently の語源・成り立ち Etymology
efficiently は efficient + -ly で、efficient はラテン語 efficere「成し遂げる」から来た語です。ef-「外へ」+ facere「作る」が effect や efficacy と同根で、『うまく結果を作り出すように』が『効率的に』の核だと分かります。
Efficiently is formed from efficient and the adverb ending -ly. Efficient comes from Latin efficere, meaning "to accomplish" or "bring about," from ex- or ef- "out" and facere "make" or "do." The word originally carried the idea of producing a result successfully, and from that it developed its modern sense. Related English words include effect and efficacy.
同じレベルの英単語をもっと
TOEIC 860の一覧へ →外部辞書で調べる
この単語を英単語クイズで覚えよう