This audio system provides high fidelity sound.

High frequency signals are used in wireless communication.

I shifted into high gear to accelerate on the highway.

High German is a West Germanic language spoken in the mountainous regions of Germany, Austria, and Switzerland.

He wore a stylish high hat to the party.

He always acts like he's on a high horse.

The group of friends got up to some high jinks at the party.

She has a high-pitched voice.

He is a high-ranking officer in the military.

She always stays at high-class hotels when she travels.