'Minasan' is the formal way to say "everyone". The casual way to say "everyone" would be just 'Mina'.
"Minasan, konnichiwa" is how you can say it.
みなさん、ようこそ (minasan youkoso) is the Japanese equivalent of 'welcome everyone'.
Minna. To politely address everyone, it becomes "Mina-san."
Didi does not mean anything in Japanese.
what does it mean in English and i might have a chance of explaining it in Japanese
"Minasan, konnichiwa" is how you can say it.
Minasan, konnichiwa.
みなさん、ようこそ (minasan youkoso) is the Japanese equivalent of 'welcome everyone'.
Minna. To politely address everyone, it becomes "Mina-san."
Everyone
'Tomodachi to kazoku no minasan e, ogenki de yatteimasu to omoimasu.'
'I wish you all success' in Japanese isã¿ãªã•ã‚“ã«ã”æˆåŠŸã‚’祈りã¾ã™ (minasan ni goseikou o inorimasu).
'Minna/minasan e.'
You may something along the lines of: "Minasan, konnichiwa. Watashi ha joi andaason to moushimasu. Kyou no purezen no teema ha shodou to nihongo de gozaimasu. Sore de ha, hajimetai to omoimasu."
'皆さん, どうもありがとう' => 'Minasan, doumo arigatou' or 'あなたたち, どうもありがとう' => 'Anatatachi, doumo arigatou' Anatatachi literally means 'you (plural)' but 'minasan' is more commonly used, and means 'all, everybody, you all etc'.
Didi does not mean anything in Japanese.
Deniva does not mean anything in Japanese.