Well in written Arabic it's (ila al lika')which means "until another encounter" like au revoir in French. But we never use it in spoken Arabic (Lebanese). Some religious people say "assalam aleykom" which translates "may peace be upon you". As for the majority of Lebanese, they say informally "yalla bye" which means "ok bye". There's as well "alla ma ak" if they are saying good bye to someone who is leaving, which translates to "may god be with you". You don't have to be religious to say that, it's a very common way of saying bye too. hope it helped.
Marhaba with a hard h, or simply Hi or Bonjour
If someone says Marhaba to you, reply with Ahlan
"Tsharrafna" or nice meeting you... Lebanese people speak 3 languages once they want to say something. The new age, they all speak french and English and little Arabic but more lebanese ...
all hamudu
Al salaam a'alaykum.
you say '' mar7aba'' :) yes im lebanese :)
kaleb is dog in lebanese this is how u say it (kaa-leeb)
you say Salam
habbie
Btedr
heloe
Ima
To say "life" in Arabic you say HAYAT.
not only in Lebanon , say : " talj ".
Mesaude (Mis - aw - day)
nayamin