grave, tomb
墓 centers on a physical place for the dead: a grave or tomb, where remains are buried and memorialized.
墓 combines 土 (earth, soil) with 莫, which likely contributes the sound and may suggest covering or darkness, fitting a grave covered by earth.
The top 莫 looks like a mound of grass and plants, and the bottom 土 is earth. Picture a grassy mound of earth marking a grave.
For ボ, imagine a solemn bow (お辞儀) at a grave: bow -> ボ, as you pay respects at the tomb.
grave; gravesite; tomb
cemetery; graveyard
graveyard; cemetery
tombstone; gravestone
visit to a grave
grave (pit)
grave marker; gravestone; headstone
graveyard
grave maintenance; grave keeper
grave; tomb
in front of a grave
imperial tomb; imperial mausoleum
gravestone; tombstone
epitaph; inscription on a tombstone
from the cradle to the grave
smart grave (app)
double-grave system; system of having one grave for the body and a separate one for prayers and services
garden cemetery; park cemetery; memorial park
public cemetery
secondary grave (usu. for disinterred and washed bones); reburial grave