There is a total of 18633 clues beginning with an
- An overwhelming flood
- An overworked horse
- An ovine
- An Oxford college
- An oxide
- An oxide
- An oyster month: Abbr
- An oz has six
- An RN gives it
- An S in USSR
- An S-shaped seat for two
- An SSR
- An SSR language
- An SASE is one
- An SASE may accompany one
- An SST
- An SUV's is relatively low
- An udder thing
- An ugly billboard, eg
- An ugly building
- An ultimatum
- An umbrella, from a Dickens character
- An ump is paid to make it
- An umpire is behind it
- An umpire makes it
- An umpire's outstretched arms signifies this
- An umpire, for example
- An un-American feeling
- An unauthorized vacation
- An unbelievable tale
- An uncle of Joseph
- An uncle of Mohammed
- An uncle of Saul
- An uncle, for instance: Abbr
- An Uncle
- An uncle: Dial
- An uncultivated person
- An undercover cop might wear one
- An understanding
- An undesirable thing
- An undesirable thing to be in
- An undetermined place
- An unenjoyable experience
- An unenviable task
- An unexpected result
- An unexpected success
- An unfinished figure 8
- An unfinished figure eight?
- An unfledged hawk
- An unfledged or nestling hawk
- An unforeseen event
- An unforgettable meal
- An unfunny Marx
- An ungulate
- An unknown quantity
- An unlikely beginning
- An unloved plant
- An unlucky one
- An unmarried woman
- An unmentionable
- An unmusical instrument
- An unnamed person
- An unnamed person or thing
- An unprecedented thing; a miracle
- An unquestionable fact
- An unrivaled champion, in slang
- An unsaturated hydrocarbon
- An unskilled hand: Colloq
- An unsolicited script, eg
- An unspecified amount
- An unspecified amount
- An unspecified number
- An unspecified number
- An unspecified person
- An unsupported act
- An untamed shrew
- An unthinking way
- An Untouchable
- An untouchable one
- An untruth
- An unused item may be placed in it
- An unusual person: Colloq
- An unusual person: Latin
- An unusual way to do things
- An unwanted impression
- An unwanted lasting impression
- An unwelcome guest
- An unwitting tool
- An unwritten reminder
- An up-to-date person
- An Upanishad
- An upland plain
- An upright
- An upright citizen, eg
- An upright in house framing
- An upside-down garbage can lid might be used as one
- An upstairs girl
- An upward billowing
- An urn, after an accident
- An usher walks up and down it