Mate may refer to:

Relationships:

• Mate (term), a term for a friend, especially in the United Kingdom and Australasia; also used to address strangers
• One of a pair of animals, sometimes also applied to a human partner; see mating

Nautical: Mate is a term used commonly in the United Kingdom, Ireland, Australia and others for a friend, though often used to address strangers as a nicety. ... It has been suggested that Copulation be merged into this article or section. ...

• A deck officer on a merchant marine vessel, usually ranked from Third Mate or Third Officer (safety officer) through Second Mate or Second Officer (navigation officer) to First Mate, Chief Mate, First Officer or Chief Officer (head of the deck department and second in command under the ship's Master)
• A sailor on a navy vessel assigned to assist another, higher ranking one (often an officer or petty officer, e.g. Bosun's mate)

Games: The head of the deck department on a merchant vessel, second in command after the ships Master (the Captain). ... Master Mariner is the official title of someone qualified to command a ship; the qualification is colloquially called a Masters Ticket. The term was introduced in the mid 19th century, and is usually held by the chief officer/first mate as well as the captain). ... The multinational Combined Task Force One Five Zero (CTF-150) The British Grand Fleet, the supreme naval force of WW1 A rare occurrence of a 5-country multinational fleet, during Operation Enduring Freedom in the Oman Sea. ... Note that Bosun, spelled that way, is the NATO reporting name for the Soviet Tupolev Tu-14 bomber. ...

• Checkmate, a situation in chess
• Team-mate, a player on the same sports team
• Mate of Origin, a rugby based competition played in New Zealand

Politics: Checkmate (frequently shortened to mate) is a situation in chess (and in other boardgames of the chaturanga family) in which one players king is under attack and there is no way to meet that threat; it is a check from which there is no escape. ... Please wikify (format) this article as suggested in the Guide to layout and the Manual of Style. ... Rugby may refer to: The sport of Rugby football, in its various forms: Rugby league Rugby union Touch Rugby Tag Rugby Wheelchair Rugby Places: Rugby, Warwickshire, England Rugby borough Rugby Rural District Rugby and Kenilworth constituency Rugby, Cape Town, South Africa Rugby, North Dakota, USA Rugby, Tennessee, USA Rugby, Brooklyn...

• Running mate, a fellow candidate for the same party in one election (e.g. running for US President and Vice President)

People: A running mate is a person running for a subordinate position on a joint ticket during an election. ...

• Vasiliy Mate (1856–1917), Russian artist and engraver

Other: Vasily Mate by Boris Kustodiev 1902 Vasiliy Vasilyevich Mate (sometimes spelled Vasily Mathé, Russian: ) (1856-1917), was a Russian artist, engraver. ...

• Yerba mate, a South American herb, as well as the popular caffeinated beverage made from it
• Mahte, or Māte, an epithet meaning "mother" applied to goddesses in Latvian mythology