significantly
significantly は英検準2級・英検2級・TOEIC 860・TOEFL 80・IELTS 6.5レベルの英単語で、「かなり、意味ありげに」という意味があります。発音記号は /sɪɡˈnɪfɪkəntli/ です。
意味一覧 (2件)
かなり
解説 Definition
程度や影響が目立って大きいことを表す副詞です。予想や基準と比べて差が明らかに存在する様子を強調します。結果や変化が顕著で、話し手の意図を際立たせたいときに使います。
Significantly means in a clear and important way, or by a noticeable amount. It is often used when describing changes, differences, or results that are large enough to matter.
覚え方のコツ Memory Tip
significantly は、数値・差・変化が「目に見えて大きい」「はっきり重要なほど」という意味で使う副詞です。significant「重要な・著しい」に -ly が付いた形で、increase significantly, reduce significantly, differ significantly, significantly better のように結果や比較とよく結びつきます。単なる very より、基準と比べて無視できない差がある感じです。視線や表情ではなく、量・程度・影響の大きさを強調します。
Build `significantly` from `significant + -ly`. It means that a change, difference, or effect is large enough to notice clearly. It often goes with results and comparisons, such as `increase significantly`, `differ significantly`, or `significantly better`. It is stronger and more precise than simple `very`.
例文
The temperature has risen significantly over the past decade.
過去10年間で気温は著しく上昇した。
Her performance improved significantly after the training.
トレーニング後、彼女のパフォーマンスは著しく向上した。
The new treatment significantly reduced the risk of complications.
新しい治療法は合併症のリスクを著しく低下させた。
意味ありげに
(意味 2)解説 Definition
しぐさ・表情・沈黙・言い方などが、表面以上の意味をほのめかす様子を表す副詞です。何かを直接言わず、聞き手や相手に特別な含みを読み取らせる場面で使います。
As an adverb, significantly can describe a look, pause, smile, or tone of voice that seems to carry an extra meaning. It is used when someone does not say something directly, but their behavior suggests that the listener should notice a hidden message or special intention. In this sense, it is about implication and expression, not about a large amount or degree.
覚え方のコツ Memory Tip
significantly は significant「意味のある・重要な」に -ly が付いた副詞です。この義では「量が大きい」ではなく、表情や沈黙、視線、言い方が何かを示している感じに注目します。look significantly, pause significantly, smile significantly のように、人の反応や態度と結びつけると覚えやすいです。既存の「かなり」は変化や差の大きさを表す別義なので、対象が数値か態度かで見分けます。
Remember that significantly comes from significant plus -ly. In this meaning, it does not mean "to a large degree"; instead, it describes a look, pause, smile, or tone that seems to mean more than it says on the surface. If you connect it with phrases like look significantly, pause significantly, or smile significantly, the sense becomes easier to remember.
例文
She looked at him significantly before answering.
彼女は答える前に、彼を意味ありげに見た。
He paused significantly, as if he wanted us to understand more than his words said.
彼は、言葉以上のことを伝えたそうに、意味ありげに間を置いた。
The professor smiled significantly when the topic of the missing report came up.
なくなったレポートの話題が出ると、教授は意味ありげにほほえんだ。
significantly の語源・成り立ち Etymology
significantly は significant に副詞語尾 -ly が付いた形で、語幹はラテン語 significare「しるしで示す」に由来します。これは signum「しるし」+ facere「作る」から成り、signify や significance も同根なので、「意味をはっきり示すように」から「かなり」の感覚へつながります。
Significantly comes from significant plus the adverb ending -ly. Significant comes from Latin significare, meaning "to indicate" or "make known by a sign," from signum "sign" and facere "to make." The idea was first about clearly showing meaning, and later the adverb also came to mean "in an important or noticeable way." Related words include signify and significance.
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