echo

(one's hometown) Same-ON + (sound)
★★☆☆☆
20 strokes

Onyomi

KYOU

Mnemonic

The sound echoed in my head like memories of my old hometown.

Kunyomi

( ) ひび*く echo
★★☆☆☆

Jukugo

影響(えいきょう)

influence ★★★☆☆
(shadow) + (echo) = 影響 (influence)

influence (You don't say "x influences Y," you have to say "Y recieves X's influence." (YYYはXXXの影響を受けた)