hypha vs filament

hypha and filament both are nouns.

Word	Noun	Adjective	Verb	Adverb
hypha	Yes	No	No	No
filament	Yes	No	No	No

As nouns, filament is a hypernym of hypha; that is, filament is a word with a broader meaning than hypha:

Other hypernyms of hypha include fibril, strand.

hypha (noun)	filament (noun)
any of the threadlike filaments forming the mycelium of a fungus	a thin wire (usually tungsten) that is heated white hot by the passage of an electric current
	a threadlike structure (as a chainlike series of cells)
	the stalk of a stamen
	a very slender natural or synthetic fiber