This is the 7430th most frequent Japanese word.
供養
Memorial or ritual offering for the deceased.
供養 here refers to a ritual or ceremony honoring and praying for someone deceased to offer peace to their soul.
彼らは亡くなった祖父のために供養をしました。
They performed a memorial ceremony for their late grandfather.
供養 in this sentence involves the preparation and offering of items such as food during a ceremony for the deceased.
供養のために特別な食べ物を準備しました。
Special food was prepared for the memorial ritual.
供養 is used to show respect and honor for something, such as a building, before an important action, like demolition.