I am told that this seal stamp character(s) are from the Chinese dialect, though I got it from my Japanese grandmother. She had it made and gave it to me. I was told it says 'strong and smart' and also resembles my name 'Matthew'.
I have not been able to find the characters that are shown on the stamp, and do not know either language well. Can someone help me with what the characters say and mean, or where to find them, along with anything else?