climacteric vs change of life

climacteric and change of life both are nouns.

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

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

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

Other synonyms of climacteric include menopause.

climacteric (noun)	change of life (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