glad vs willing

glad and willing both are nouns.

Word	Noun	Adjective	Verb	Adverb
glad	Yes	Yes	No	No
willing	Yes	Yes	No	No

glad (noun)	willing (noun)
any of numerous plants of the genus Gladiolus native chiefly to tropical and South Africa having sword-shaped leaves and one-sided spikes of brightly colored funnel-shaped flowers; widely cultivated	the act of making a choice

glad (adjective)	willing (adjective)
showing or causing joy and pleasure; especially made happy	disposed or inclined toward
cheerful and bright	not brought about by coercion or force
feeling happy appreciation
eagerly disposed to act or to be of service