Love-hole and Sinkhole

Sinkhole and love-hole are semantically related. In some cases you can replace term "Sinkhole" with "Love-hole", this terms are similar.

Sinkhole noun - A depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof.

Love-hole and sinkhole are semantically related. Sometimes you can replace phrase "Love-hole" with "Sinkhole", this terms are similar.