partnerとは何ですか?One that is united or associated with another or others in an activity or a sphere of common interest, especially:Either of two persons dancing together.A member of a business partnership.A spouse.A domestic partner. See Usage Note at domestic partner.One of a pair or team in a sport or game, such as tennis or bridge.Nautical A wooden framework used to strengthen a ship's deck at the point where a mast or other structure passes through it. Often used in the plural.To make a partner of.To bring together as partners.To be the partner of.To work or perform as a partner or partners.