instalment vs broadcast

instalment and broadcast both are nouns.

Word	Noun	Adjective	Verb	Adverb
instalment	Yes	No	No	No
broadcast	Yes	No	Yes	No

As nouns, broadcast is a hypernym of instalment; that is, broadcast is a word with a broader meaning than instalment:

Other hypernyms of instalment include program, programme.

instalment (noun)	broadcast (noun)
the act of installing something (as equipment)	message that is transmitted by radio or television
a part of a broadcast serial	a radio or television show
a part of a published serial

instalment (verb)	broadcast (verb)
	cause to become widely known
	broadcast over the airwaves, as in radio or television
	sow over a wide area, especially by hand