can we write 아저시 instead of 아저씨?
Why not? Same pronounciation, isnt it?

Question

can we write  아저시 instead of 아저씨?
Why not? Same pronounciation, isnt it?

Answer

Nope! When writen, It has to be "아저씨(ssi)", but the good news is some Koreans pronounce 'ㅆ' as 'ㅅ'.

e.g.
쌀 ☞ 살
싸서 ☞ 사서

\^o^/

Answer

the word is 아저씨 which was made originally from the first ^^;
it's not about pronunciation. it could be a little confusing but...^^;