Estrogen is a type of female hormone.

He was reading a book about the Cyclops in Greek mythology.

The road was blocked due to an accident.

The great white shark can be called the king of the sea.

The great white shark is also referred to as the king of the sea.

He is majoring in syntax at university.

He is said to have a sharp sixth sense.

Chlorobenzene is often used in chemical reactions.

He was at a crossroads in his life.

The charge of an electron is about 1.6 x 10^-19 coulombs.