in a pyramid
An ancient Egyptian burial building that looks like a flat-topped bench is a mastaba.
These are referred to as 'mastabas'. Search google for that term.
pyramids
It's inside a pyramid.
no temples are like burial tombs
A chamber made for the king or queen of Egypt, after death, they are put in burial chambers.
SARCOPHAGUS - ancient Egyptian burial coffin, or any such coffin or tomb
Egyptian burial shrouds were cloths (often or always made of linen) they wrapped mummies in. Apparently seven shrouds were used. They believed burial shrouds were essential to the afterlife.
The likely word is sarcophagus (burial vault or coffin, notably ancient Egyptian).
Burial chambers for important ancient Egyptians, especially the Pharaohs.
The opening of the mouth ceremony, offering of food, weighing of the heart, burial ceremony
Pyramids were built in Ancient Egypt as tombs, or burial places, for Egyptian pharaohs, or kings.