grounding vs attachment

grounding and attachment both are nouns.

Word	Noun	Adjective	Verb	Adverb
grounding	Yes	No	No	No
attachment	Yes	No	No	No

As nouns, attachment is a hypernym of grounding; that is, attachment is a word with a broader meaning than grounding:

Other hypernyms of grounding include fastening.

grounding (noun)	attachment (noun)
fastening electrical equipment to earth	the act of fastening things together
education or instruction in the fundamentals of a field of knowledge	the act of attaching or affixing something
	faithful support for a cause or political party or religion
	a supplementary part or accessory
	a connection that fastens things together
	a writ authorizing the seizure of property that may be needed for the payment of a judgment in a judicial proceeding
	a feeling of affection for a person or an institution