Catacomb and Pothole

Catacomb noun - An underground tunnel with recesses where bodies were buried (as in ancient Rome).

Pothole and catacomb are semantically related. In some cases you can replace term "Pothole" with "Catacomb", this nouns are similar.

Pothole noun - A pit or hole produced by wear or weathering (especially in a road surface).

Catacomb and pothole are semantically related. Sometimes you can use "Catacomb" instead a noun "Pothole".