漢字 or in simplified shape 汉字 (hanzi in modern standard Mandarin Chinese, one of the several Han languages among Chinese languages), meaning Han (ethnie) script is the script of the main Chinese population, in China for several milleniums. There are not hyeroglyphs (Egyptian script), even if they have in common, as most of all of the planet scripts, pictographic origin.
Beside China, the Han charactees was also the main script used in Koreas (漢字 hanja), Japan (漢字 kanji) and Vietnam (漢字 Hán tự) until the middle of 20th Century. They are often called CJK instead of CJKV, don't know why, Korea as Vietnam don't use them anymore in their everyday script, Vietnam still used it officialy until 1954, the time of French decolonization, where Korea, if I'm not wrong stopped to use it with japanese decolonization in 1945.
Inside 18th and 19th Century China, Mongolians and Tibetan used, probably due to Manchu influence all over China, decoration with rounded shape longevity han character (寿 shou, some thinking that's the near rounded character happiness), also used as first character to describe sushi (寿司) in Japan. They are still used today in independant Mongolian Republic, or by Mongolians of China and Russia too, and by Tibetans, or several mixed culture of Tibetan, Mongolians, Turkic or other minorities cultures.