Is there any single word expression that means “same”

Question

I understand this is casual English to say "same" after someone says they do something, but I was wondering if there was a close expression in Japanese that isn't just like 私も. I've heard there's それな but that applies more to the usage where you agree with someone, not that you do the same thing.

Answer 1

You could say 同感{どうかん}. A longer way would be 私もそう思う.