rust vs flax rust

flax rust vs rust

rust and flax rust both are nouns.

rust is an adjective but flax rust is not an adjective.

rust is a verb but flax rust is not a verb.

Word	Noun	Adjective	Verb	Adverb
rust	Yes	Yes	Yes	No
flax rust	Yes	No	No	No

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

rust: any of various fungi causing rust disease in plants
flax rust: fungus causing flax rust

Other hyponyms of rust include flax rust fungus, Melampsora lini, blister rust, Cronartium ribicola, Puccinia graminis, wheat rust, apple rust, cedar-apple rust, Gymnosporangium juniperi-virginianae.

rust (noun)	flax rust (noun)
A strong reddish brown color.	fungus causing flax rust
any of various fungi causing rust disease in plants
the formation of reddish-brown ferric oxides on iron by low-temperature oxidation in the presence of water
a plant disease that produces a reddish-brown discoloration of leaves and stems; caused by various rust fungi
a red or brown oxide coating on iron or steel caused by the action of oxygen and moisture

rust (adjective)	flax rust (adjective)
of the brown color of rust

rust (verb)	flax rust (verb)
become destroyed by water, air, or a corrosive such as an acid
cause to deteriorate due to the action of water, air, or an acid
become coated with oxide

Difference between rust and flax rust

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