knight (knights plural & 3rd person present) (knighting present participle) (knighted past tense & past participle )
1 n-count In medieval times, a knight was a man of noble birth, who served his king or lord in battle.
2 verb If someone is knighted, they are given a knighthood.
usu passive
He was knighted in the Queen's birthday honours list in June 1988. be V-ed
3 n-count A knight is a man who has been knighted.
4 n-count In chess, a knight is a piece which is shaped like a horse's head.
5 If you refer to someone as a knight in shining armour, you mean that they are kind and brave, and likely to rescue you from a difficult situation. ♦
knight in shining armour phrase knight inflects Love songs trick us into believing in knights in shining armor.
white knight (white knights plural )A white knight is a person or an organization that rescues a company from difficulties such as financial problems or an unwelcome takeover bid. (BUSINESS) n-count
...a white-knight bid.