Dressed to the nines

What is Dressed to the nines?

Dressed to the nines definition and meaning on Dictionary terms:
a cardinal number, eight plus one.
a symbol for this number, as 9 or IX.
a set of this many persons or things.
a baseball team.
a playing card with nine pips.

the Nine, the Muses.

amounting to nine in number.


reference: https://www.dictionary.com/browse/dressed–to–the–nines