swift

Universal Words adjective, noun adjective (swifter, swiftest) (written) 1 ~ (to do sth) happening or done quickly and immediately; doing sth quickly: swift action / progress * a swift decision / glance * He rose to his feet in one swift movement. * The White House was swift to deny the rumours. 2 moving very quickly; able to move very quickly: a swift current / runner -< FAST swiftly adverb: Surprise was swiftly followed by outrage. * She moved swiftly to the rescue. swiftness noun [U,sing.]: He moved with surprising swiftness for a man of his age. * She made her escape with a swiftness born of fear. noun a small bird with long narrow wings, similar to a SWALLOW