In sociology, Gesellschaft refers to a society where individual relationships are formed based on contracts.

There is a three-way interview at my son's school tomorrow.

He suddenly vanished.

Estradiol is a type of female hormone, mainly produced in the ovaries.

The police are cornering the fugitive.

He discreetly swapped my wallet.

Liquid nitrogen is very cold, so care must be taken when handling it.

He is the founder of this company.

My new light vehicle is fuel-efficient and very convenient.

Projective geometry is a branch of mathematics that studies geometric objects such as points, lines, and planes and their relationships.