intransitive verb to affirm or certify someone or something to be true, truthful, genuine, or correct (usu. fol. by “for”).The witness vouched for the defendant’s good character.I’m willing to vouch for him…

adjective unnecessarily repetitive.To say that someone is “extremely ecstatic” seems redundant in that “ecstatic” already includes the idea of extremeness. See the full entry

noun a close watch or observation, esp. of a person or group of people under suspicion.The suspected gangster had been under police surveillance for months before his arrest. See the full entry

noun a person who buys the goods or services of a business establishment, esp. a regular customer or client of a shop, hotel, restaurant, or the like.The couple were steady patrons, and…

noun tiresome lack of variation.They eventually grew tired of the monotony of their pleasant life on the island. See the full entry