In its plural form, Paul uses the word to refer to all believers.
For Paul, the word is not applied only to persons of
exceptional holiness, nor to those having died characterized
by an exceptional life of saintliness.
Ephesians 2:19
So then you are no longer strangers and sojourners,
but you are fellow citizens with the holy ones (hagios)
and members of the household of God,
Romans 12:13
Contribute to the needs of the holy ones, exercise
hospitality.
Romans 16:15
Greet Philologus, ... and all the holy ones who are
with them.