Egyptian Writing - Hieroglyphs

Is it hieroglyphic or hieroglyphs?

The Amarna letters are a correspondence from the 14th century B.C., between the Egyptian pharaoh and rulers in the Ancient Near East.

The Rosetta Stone was written in three languages used in ancient Egypt. This page shows the common language, known as demotic.

Hieroglyphs are a type of ancient writing using pictures.

In the third century B.C. an Egyptian priest named Manetho listed 30 royal dynastic houses of ancient Egypt, followed by the Persian rulers. Manetho's work is gone, but an epitome of it survives from versions written in the third to eighth centuries A.D.