Knickers and Slacks

Knickers noun - Underpants worn by women.

Slacks and knickers are semantically related in pants topic. In some cases you can use "Slacks" instead a noun "Knickers", when it comes to topics like trousers, clothing for legs.

Slacks noun - (usually in the plural) pants for casual wear.

Knickers and slacks are semantically related in trousers topic. You can use "Knickers" instead a noun "Slacks".