напа́рник — meaning in English

naparnik

English meaning

associate verb To connect one thing or idea with another in your mind.
mate noun A friend or companion, especially of the same sex.
partner noun A spouse or other person with whom someone shares a romantic or domestic relationship.
peer noun Someone of the same rank, age, or status as another person.

напа́рник is used for these senses in English:

associate A person united with another or others in an act, enterprise, or business; a partner or employee.
mate A fellow, comrade, colleague, partner or someone with whom something is shared, e.g. shipmate, classmate.
mate (nautical) In naval ranks, a non-commissioned officer or his subordinate (e.g. Boatswain's Mate, Gunner's Mate, Sailmaker's Mate, etc).
partner Someone who is associated with another in a common activity or interest.
peer A comrade; a companion; an associate.

verb To connect one thing or idea with another in your mind.
verb To spend time with someone, or join with them as a partner or ally.
noun A person you work with, especially a colleague, partner, or business contact.
adj Joined with another person or group, often with a lower or partial level of status.

noun A friend or companion, especially of the same sex.
noun A friendly, informal way to address someone, especially in British English.
noun A breeding partner of an animal.
noun A ship's officer ranking below the captain.
verb To pair with another (animal) for breeding.