☝️👽 The both are the places which the dead are Buried in.
✍ In the Old days, Graveyards were the places in which, Rich people and Nobles were Buried Often Near Churches.
✍ As the number of The Dead went up, some places were Prepared to Bury all kinds of people, a bit Far from the main Cities, called Cemetery.
1⃣ My grandfather says that he can clearly when a lot of affluent [rich] people were buried near the cathedral[big church].(☝️Mentioning Graveyard.)
2⃣ I really like visiting martyrs cemetery when I'm out of the city.