apu' Sense n English Grandparent, any relative of oneś grandparents ́generation. Sense n English Polite term of address to a person of oneś grandparents ́generation. Sense n English Grandchild. Derivative kiya'ápu-ápu'an n Note Distant ancestors. Idiom apu' tu'úd. Note Great grandchild, great grandparent (lit. grandparent knee). Idiom apu' siku. Note Great-great grandchild or parent (lit. grandparent ear) Idiom apu' talinga Note Great-great-great grandchild or parent (lit. grandparent ear). Cultural Note It is relatively easy to touch oneś knee to oneś nose, harder to touch oneś elbow and impossible to touch oneś ear to oneś nose. Hence when the great grandchild is born, one is able to go and see it. When the great-great grandchild is born, one isn't so active but still able to visit. But when a great-great-great grandchild is born, one is probably housebound and only able to hear about it. Compound túngtung-inápu' n Note Descendant (after many generations).