dry-gulching vs lying in wait

dry-gulching and lying in wait both are nouns.

Word	Noun	Adjective	Verb	Adverb
dry-gulching	Yes	No	No	No
lying in wait	Yes	No	No	No

As nouns, lying in wait is a hypernym of dry-gulching; that is, lying in wait is a word with a broader meaning than dry-gulching:

dry-gulching: the act of killing from ambush
lying in wait: the act of concealing yourself and lying in wait to attack by surprise

Other hypernyms of dry-gulching include execution, murder, slaying, ambuscade, ambush, trap.

dry-gulching (noun)	lying in wait (noun)
the act of killing from ambush	the act of concealing yourself and lying in wait to attack by surprise