what does "well" mean in a conversation, not an adjective or adverb.

what is the closest turkish translation if there is any.

I tried to think of situations where I would start talking with the opening "well !" in English.

EXAMPLE : Well ! we must leave early then...

This use of "well"  may correspond to one or more of the following conversation openings in Turkish,

iyisi mi

belki de

en iyisi

daha doğrusu

I HOPE I UNDERSTOOD YOUR QUESTION CORRECTLY