It was a nice day
a beautiful voice - une belle voix
a beauty.
"une belle rencontre" means "a beautiful encounter" in French.
"a une belle journée" means "... a beautiful day"the 'a' could mean "[one / we do] have" as in "on a"
A beautiful friend.
"une belle soirée" is "a nice (or beautiful) evening" in French.
it means very pretty
'une belle demeure' is a beautiful house -often a stately one- in French.
I had a nice day
It's a beautiful patio
"Je vous souhaite une belle journée, ciao" is 'I wish you a pleasant day, goodbye'
very nice as a flower