lady

noun (plural ladies)

• 1a woman (used as a polite or old-fashioned form of reference):I spoke to the lady at the travel agency [as modifier]:a lady doctor
• (the Ladies) British a women’s public toilet.
• chiefly North American an informal, often brusque, form of address to a woman:I’m sorry, lady, but you have the wrong number

• 2a woman of superior social position, especially one of noble birth:lords and ladies and royalty were once entertained at the house
• a courteous, decorous, or genteel woman:his wife was a real lady, with such nice manners
• (Lady) (in the UK) a title used by peeresses, female relatives of peers, the wives and widows of knights, etc.:Lady Caroline Lamb

• 3 (one's lady) dated a man’s wife:welcoming the vice president and his lady
• (also lady friend) a woman with whom a man is romantically or sexually involved:the young man bought a rose for his lady
• historical a woman to whom a man, especially a knight, is chivalrously devoted.