Muck and Scum

Muck noun - Foul matter that mars the purity or cleanliness of something.

Scum and muck are semantically related in dirt topic. In some cases you can use "Scum" instead a noun "Muck", when it comes to topics like trash, garbage.

Nearby Words: mucky, mucked, mucker, mucking

Scum noun - People looked down upon as ignorant and of the lowest class.

Muck and scum are semantically related in trash topic. You can use "Muck" instead a noun "Scum", if it concerns topics such as garbage.