響 means to resound, to echo and is a JLPT N1 kanji. It has 20 strokes and uses the sound radical (音).
Stroke order · 20 strokes
On'yomi (音読み)
キョウ
Kun'yomi (訓読み)
ひび(く)
Radical
音 · sound
Strokes
20
How to remember 響
Sound (音) spreading across the whole village (郷) — resonance. 響く!! — 心に響く means to strike a chord in one's heart; 影響!!! — influence; an essential N1 word!