Agreement
Feeling The Same
noun, verbal noun
When you have the same feeling as someone else, you are in agreement with them. They have an opinion or feeling about something, and you're feeling the same way.
同感 is a word used to express agreement, often with a sense of shared feeling. You use it when you hear a thought or viewpoint that really resonates with you — you totally agree with this person's take and feel exactly the same way. Preach!
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
私もその意見に同感ですね。
I agree with that opinion as well.
今までにこんなに同感したことがないぐらい、思いっきり同感しています。
I agree with this more wholeheartedly than I've ever agreed with anything in my whole life.
「私、フグのこと嫌い。」「同感だわ。」
"I hate Fugu." "I feel the same way."