KanjiJLPT N2
Respond To

apply, answer, yes, OK, reply, accept

Mnemonic

From your veranda, you hear a desperate voice calling out below. Your heart seizes—you know you must respond to them. You grip the railing and shout back, your heart pouring into every word, because no one standing on their own veranda can ignore a cry that close.
Additional thoughts
Picture the veranda as the place where outside meets inside—the heart bridges that gap by responding. The physical closeness of the cry (right below your veranda) makes the heart's urge to respond feel automatic and urgent.
Quick recall
A cry reaches your veranda and your heart compels you to respond to it.

Details

The keyword for 応 is respond to. This kanji conveys the idea of answering, replying, or reacting to something, whether it be a question, a situation, or a demand. It carries the sense of meeting expectations or rising to an occasion, implying an active engagement with what is presented. It is widely used in contexts involving responses, applications, and compliance.
On'yomi
おう、よう、-のう
Kun'yomi
あた.る、まさに、こた.える