change of life vs climacteric

change of life and climacteric both are nouns.

Word	Noun	Adjective	Verb	Adverb
change of life	Yes	No	No	No
climacteric	Yes	No	No	No

As nouns, change of life and climacteric are synonyms defined as:

change of life and climacteric: the time in a woman's life in which the menstrual cycle ends

Other synonyms of change of life include menopause.

change of life (noun)	climacteric (noun)
the time in a woman's life in which the menstrual cycle ends	the time in a woman's life in which the menstrual cycle ends
	a period in a man's life corresponding to menopause