Proxy

mandat

(authority to act for another, especially when written)

mandatari

(agent or substitute authorized to act for another person)

mandatària

(agent or substitute authorized to act for another person)

mesura indirecta

((science) measurement of one physical quantity that is used as an indicator of the value of another)

procuracion

(authority to act for another, especially when written)

proxi

((software) an interface for a service)

proxy

((software) an interface for a service)