The upper esophageal sphincters play a crucial role in preventing the backflow of food and acid into the throat.

I saw a row of upside down fridges at the appliance store.

Upsilon mesons are subatomic particles.

The upholsterer bees are busy building their nests.

The upsilon particles were observed in the experiment.

The upper sets of the building are reserved for VIP guests.

He delivered a series of powerful upper cuts.

The upper airways are responsible for conducting air into the lungs.

Building upon his previous success, he launched a new business venture.

The success of the company is built upon the hard work and dedication of its employees.