lecturing vs instruction

lecturing and instruction both are nouns.

Word	Noun	Adjective	Verb	Adverb
lecturing	Yes	No	No	No
instruction	Yes	No	No	No

As nouns, instruction is a hypernym of lecturing; that is, instruction is a word with a broader meaning than lecturing:

lecturing: teaching by giving a discourse on some subject (typically to a class)
instruction: the profession of a teacher

Other hypernyms of lecturing include pedagogy, teaching.

lecturing (noun)	instruction (noun)
teaching by giving a discourse on some subject (typically to a class)	the profession of a teacher
	the activities of educating or instructing; activities that impart knowledge or skill
	(computer science) a line of code written as part of a computer program
	a message describing how something is to be done