Frequency: The word is one of the 3000 most common words in English.
1.
Speakers and writers use ~ to indicate that something belongs or relates to people in general, or to themselves in particular. (FORMAL)
...a feeling of responsibility for the welfare of others in ~ community...
= your
DET
2.
One’s can be used as a spoken form of ‘one is’ or ‘one has’, especially when ‘has’ is an auxiliary verb.
No ~ going to hurt you. No one. Not any more...
I think ~ got to consider all the possibilities.
see one