呼唤
hū huàn · HSK 7
to call out
📢 呼 (breathe out, shout) + 唤 (summon) = to call out a name
Both characters carry the 口 (mouth) radical, so the word is doubly about sound leaving the mouth. 呼 is the outward breath of a shout; 唤 is summoning someone. Together they mean calling out to get attention.