The small islet is surrounded by crystal clear water.

Feminism is a social and political movement advocating for equal rights for women.

He isn't coming to the party tonight.

The isobar on the map connects points of equal pressure.

He felt isolated from his friends after moving to a new city.

Isolationism is a policy of remaining apart from the affairs or interests of other countries.

The two compounds have the same molecular formula but different properties, making them isomers.

Isoprene is commonly used in the production of synthetic rubber.

An isosceles triangle has two equal sides.

Isostasy is the equilibrium between the upward force exerted by the Earth's crust and the downward force exerted on it.