pełnomocnik — meaning in English

English meaning

agent noun A person who acts on behalf of another, especially in business or legal matters.
factor noun One of several things that contributes to or influences a result.
plenipotentiary noun A person given complete authority to act on behalf of a government, especially in diplomatic negotiations.

pełnomocnik is used for these senses in English:

agent One who acts for, or in the place of, another (the principal), by that person's authority; someone entrusted to act on behalf of or in behalf of another, such as to transact business for them.
attorney-in-fact (US, legal) An agent of the person giving him/her the power of attorney (for a specific purpose or for general purposes) to act on his or her behalf. The attorney-in-fact’s power and responsibilities depend on the specific powers granted in the power of attorney document.
factor (obsolete) A doer, maker; a person who does things for another person or organization.
plenipotentiary A person invested with full powers, especially as the diplomatic agent of a sovereign state, (originally) charged with handling a certain matter. [from c. 1645]

noun A person who acts on behalf of another, especially in business or legal matters.
noun A person who works, often secretly, for a government or intelligence organization.
noun A substance or force that produces an effect.

noun One of several things that contributes to or influences a result.
noun A number that divides evenly into another number.
verb To rewrite a mathematical expression as a product of simpler terms, or to find the numbers that divide it evenly.
verb To take something into account when making a decision.