with respect to (someone or something)
In reference to someone or something; considering someone or something. With respect to that proposal, I think we should postpone it for now.
with respect to someone or something
of or about someone or something. With respect to radiation, this power plant is very safe. This article examines experiments with respect to ethical issues.
with respect to something
(formal) (often used in business) concerning something; with reference to something: With respect to your enquiry about the new pension scheme, I have pleasure in enclosing our leaflet.