1. Noun, Suru verb, Intransitive verb

   1.

   feeling (much) obliged; being (very) grateful; being thankful

2. 2.

   feeling sorry (for troubling someone); feeling ashamed (e.g. of an error); feeling embarrassed (e.g. by someone's compliments, hospitality, etc.)

3. 3.

   shrinking back in fear

Example sentences

• トム最近謝りすぎ。僕が恐縮しちゃうじゃん。

  Tom has been apologizing too much lately. It makes me feel sorry for him.

• そんなに感謝されると逆にこっちが恐縮しちゃうよ。

  I'm rather embarrassed to receive so many words of thanks.