Machines with U

• U-boat

  Military submarine type; powered war machine.

• Ute

  A ute is a powered utility vehicle used for hauling loads.

• underwater submarine

  A submarine is a powered machine built for underwater travel.

• UFO

  A UFO is commonly imagined as a powered flying craft.

• underwater camera

  Powered device for shooting photos underwater.

• Ultrasound machine

  Medical imaging device using ultrasound waves.

• Universal remote

  Electronic device controlling other machines.

• UPS

  Uninterruptible Power Supply; electrical device.

• Underground train

  Powered rail vehicle running below ground.

• Upholstery machine

  Powered sewing tool that stuffs furniture padding

• Underwater drill

  Powered drill designed to bore holes underwater

• Universal charger

  Powered adapter charging many device types

• UPS truck

  A powered delivery vehicle built to carry parcels.

• underwear washer

  A washer is a powered appliance that cleans clothing.

• Underground digger

  Powered machine that tunnels or bores underground

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• UFOs

  Flying machines whose origins remain unidentified.

• Umbrella making machine

  Powered industrial device that mass‑produces umbrellas.

• UAV

  UAV = unmanned aerial vehicle drone aircraft

• umbrella machine

  Hypothetical powered device to move umbrellas, fits as machine

• udder milker

  Powered milking machine for udders on farms, common in dairies

The words in the list Machines with U come from players of the word game City, Country, River.