The ancient Egyptian Mast hieroglyph is one of the oldest language hieroglyphs from Ancient Egypt. It is used on a famous label of Pharaoh Den of the First dynasty, but forms part of the location hieroglyph: Emblem of the East.
The Ship's Mast hieroglyph is used as a triliteral phonetic hieroglyphic to represent the sound sequence ꜥḥꜥ, which means "to stand erect", or "to stand vertical"; its use is extensive throughout the language history, and hieroglyphic tomb reliefs and story-telling of Ancient Egypt. It is possibly a forerunner hieroglyph kh3 , the sun rising upon the horizon.