How do you spell Tomb

Available Definitions:
1)  n. - A pit in which the dead body of a human being is deposited; a grave; a sepulcher.
2)  n. - A house or vault, formed wholly or partly in the earth, with walls and a roof, for the reception of the dead.
3)  n. - A monument erected to inclose the body and preserve the name and memory of the dead.
4)  v. t. - To place in a tomb; to bury; to inter; to entomb.