clean and jerk vs weightlifting

clean and jerk and weightlifting both are nouns.

Word	Noun	Adjective	Verb	Adverb
clean and jerk	Yes	No	No	No
weightlifting	Yes	No	No	No

As nouns, weightlifting is a hypernym of clean and jerk; that is, weightlifting is a word with a broader meaning than clean and jerk:

clean and jerk: a weightlift in which the barbell is lifted to shoulder height and then jerked overhead
weightlifting: bodybuilding by exercise that involves lifting weights

Other hypernyms of clean and jerk include weightlift.

clean and jerk (noun)	weightlifting (noun)
a weightlift in which the barbell is lifted to shoulder height and then jerked overhead	bodybuilding by exercise that involves lifting weights