He likes to quad around the park.

I rode a quad bike through the muddy trails.

I love to quad in the desert.

I saw a quad parked outside the store.

I love to quad in my spare time.

Quantum spin liquid is a state of matter that exhibits exotic quantum properties.

He was accused of quackery and faced legal consequences.

The quality circle is a group of employees who meet regularly to identify and solve work-related problems.

The quantum state of the particle is uncertain.

Quantum entanglement is a phenomenon in which two or more particles become connected in such a way that the state of one particle cannot be described independently of the state of the other particles.