To Echo
To Reverberate, To Resound
intransitive verb, godan verb
Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means echo so the verb is to echo.
Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading. You didn't learn that reading with this kanji, so here's a mnemonic to help you: He be (ひび) echoing... He be (ひび) echoing... He be (ひび) echoing... He be (ひび) echoing... He be (ひび) echoing...
おこったコウイチの声が部屋中に響いた。
Koichi's angry voice echoed through the room.
動画が終わった後も、コウイチの歌声は私の心に響いていました。
Even after the video ended, Koichi's voice was still reverberating in my heart.
大きな契約を勝ち取るには、顧客の心に響く素晴らしい提案書が必要だ。
To win a major contract, we’ll need a great business proposition that resonates in our customers’ hearts.