medical examination vs checkup

medical examination and checkup both are nouns.

Word	Noun	Adjective	Verb	Adverb
medical examination	Yes	No	No	No
checkup	Yes	No	No	No

As nouns, medical examination and checkup are synonyms defined as:

medical examination and checkup: a thorough physical examination; includes a variety of tests depending on the age and sex and health of the person

Other synonyms of medical examination include health check, medical, medical checkup, medical exam.

medical examination (noun)	checkup (noun)
a thorough physical examination; includes a variety of tests depending on the age and sex and health of the person	a thorough physical examination; includes a variety of tests depending on the age and sex and health of the person