protection vs crystal

protection and crystal both are nouns.

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

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

protection (noun)	crystal (noun)
the activity of protecting someone or something	a protective cover that protects the face of a watch
payment extorted by gangsters on threat of violence	glassware made of quartz
kindly endorsement and guidance	a crystalline element used as a component in various electronic devices
the imposition of duties or quotas on imports in order to protect domestic industry against foreign competition	a rock formed by the solidification of a substance; has regularly repeating internal structure; external plane faces
a covering that is intend to protect from damage or injury	a solid formed by the solidification of a chemical and having a highly regular atomic structure
defense against financial failure; financial independence	colorless glass made of almost pure silica
the condition of being protected