This cream is designed for optimal sub-preputial hygiene.

The accumulation of subpreputial secretions can cause health problems in men.

Underproduction is a problem for the industry.

He has subnormal intelligence.

He was treated like a subhuman.

The subtangent is an important concept in mathematics.

Suborder taxonomic ranks are categories of classification below the order.

The subletter must respect the rules of the apartment.

Economic underdevelopment is a major challenge for many countries.

Underemployment is a growing problem in many countries.