ph.
begin an undertaking or enterprise
Oxford Dictionary
ph.
continue with an undertaking or enterprise, typically in the face of difficulties
Oxford Dictionary
ph.
continue with an undertaking or enterprise, typically in the face of difficulties
Oxford American Dictionary
ph.
begin an undertaking or enterprise
Oxford American Dictionary
ph.
begin (or continue with) an undertaking or enterprise
Oxford Dictionary
ph.
begin (or succeed in continuing with) an undertaking or enterprise
Oxford American Dictionary