Bottoms and Basement

Basement and bottoms are semantically related. in foundation topic. In some cases you can use "Basement" instead the word "Bottoms" as a noun or an adjective, when it comes to topics like lowest.

Basement noun - A room or set of rooms below the surface of the ground.

Bottoms and basement are semantically related. Sometimes you can replace term "Bottoms" with "Basement", this nouns are similar.