protection vs sealing

protection and sealing both are nouns.

Word	Noun	Adjective	Verb	Adverb
protection	Yes	No	No	No
sealing	Yes	No	No	No

As nouns, sealing is a hyponym of protection; that is, sealing is a word with a more specific, narrower meaning than protection:

protection (noun)	sealing (noun)
the activity of protecting someone or something	the act of treating something to make it repel water
payment extorted by gangsters on threat of violence
kindly endorsement and guidance
the imposition of duties or quotas on imports in order to protect domestic industry against foreign competition
a covering that is intend to protect from damage or injury
defense against financial failure; financial independence
the condition of being protected