p.372-373

  • UFO
  • ugly
  • UK., U.K.
  • ukulele
  • umbrella
  • umpire
  • UN, U.N.
  • uncertain
  • uncle
  • uncomfortable
  • under
  • underline
  • understand
  • understood
  • underwater
  • underwear
  • uneasy
  • unfair
  • unforgettable
  • unfortunately
  • unhappy
  • unhealthy
  • unicorn
  • unicycle
  • uniform

p.374-375

  • unimportant
  • unique
  • unit
  • United Arab Emirates
  • United Kingdom
  • United Nations
  • United States (of America)
  • universal
  • universe
  • university
  • unknown
  • unless
  • unlike
  • unlock
  • unlucky
  • unnecessary
  • until
  • unusual
  • up
  • upon
  • upset
  • upside
  • upstairs
  • URL
  • Uruguay
  • US, U.S.
  • us

p.376

  • USA, U.S.A.
  • use
  • used1
  • used2
  • useful
  • user
  • user-friendly
  • usual
  • usually