lifestyle vs manner

lifestyle and manner both are nouns.

Word	Noun	Adjective	Verb	Adverb
lifestyle	Yes	No	No	No
manner	Yes	No	No	No

As nouns, manner is a hypernym of lifestyle; that is, manner is a word with a broader meaning than lifestyle:

lifestyle: a manner of living that reflects the person's values and attitudes
manner: how something is done or how it happens

Other hypernyms of lifestyle include fashion, mode, style, way.

lifestyle (noun)	manner (noun)
a manner of living that reflects the person's values and attitudes	a way of acting or behaving
	how something is done or how it happens
	a kind