There is no consistent way to say "OK" in Arabic and most people use whatever word means "good" in their dialect.
The Proper Arabic term (usually seen in subtitles for English-language movies) for "OK" is hasanan (ØØ³Ù†Ø§Ù‹). However, saying this in day-to-day exchanges will sound slightly pompous since it is an exclusively Proper Arabic word. (It would be the same way that saying "farewell" instead of "bye" to your friends would sound slightly pompous.)
In Egyptian Arabic, the term usually used is koyyes (كيّس). As Egyptian Arabic becomes more popular across the Arabic world, this term is becoming more popular.
In Levantine Arabic, the term usually used is mlih (مليØ).
In Iraqi Arabic, the term usually used is zayn (زين).
In Moroccan Arabic, the term usually used is mezyan (مزيان).
kefhalat ? (How are you?) answer: qwaish means fine
like some one is asking you how are you ? and you say iam doing good or in Arabic ( ana mneeh ) but this is in not formal language. and it written in Arabic this way : أنا منيح
ana zain or ana kwieez
etha ent bekhair ana bekhair اذا انت بخير انا بخير
al hamdillulah, shukran
In slang Arabic , you can say " ta-eeb" or " mashi elhal" , in standard Arabic say " jaeed".
If you want to say Arabic in Arabic this is how you say it=Arabi
I am doing fine :- ana mneeh ( if you are male ) , ana mneha ( if female ) .Or- kol shi tamam.Orans kwieez awy
answering a question, 'i am fine'.... 'Hamdullah'
In Arabic we say Ramadan.
kabid
To say 'disbeliever' in Arabic, you would say 'kaffir.'