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」という意味があります。発音記号は /sɪɡˈnɪfɪkəntli/ です。
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
significant を知っていれば、-ly が付いて「重要な・目立つ」状態がそのまま副詞化した形だと押さえやすいです。つまり significantly は、単なる very ではなく「差・変化・影響がはっきり見えるほどに、かなり」。数字や結果と相性がよく、increase significantly, differ significantly, significantly better でまとめて覚えると定着します。especially のような“強調”より、比較して明確な差がある響きです。
Build it from `significant + -ly`. The feeling is not just "very" but "large enough to clearly notice." That is why it often goes with comparisons and results, like `increase significantly`, `differ significantly`, or `significantly better`.
例文
This box is significantly bigger.
この箱はかなり大きい。
The price is significantly lower.
その値段はかなり安い。
Our town is significantly warmer now.
私たちの町は今かなり暖かい。
significantly の類義語・関連語
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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