Aron Kodesh

The Torah ark or ark in a synagogue is known in Hebrew as the Aron Kodesh by the Ashkenazim and as the Hekhál among most Sefardim; it is generally a receptacle, or ornamental closet, which contains each synagogue's Torah scrolls (Sifrei Torah in Hebrew). Most arks feature a parokhet (curtain) placed either outside the doors of the ark (Ashkenazi and Mizrachi custom) or inside the doors of the ark (Spanish and Portuguese and Moroccan Sephardi custom).

Aron Kodesh comes from Hebrew אָרוֹן קׄדֶש‎ ʼārōn qōdeš (i.e. aron kodesh), Holy Ark. This name is a reference to the ’ārōn haqqōdeš, the Hebrew name for the Ark of the Covenant which was stored in the Holy of Holies in the inner sanctuary of both the ancient Tabernacle and the Temple in Jerusalem. Similarly, Hekhál, also written hechal, echal or heichal — and sometimes also Echal Kodesh (mainly among Balkan Sephardim) comes from Hebrew הֵיכָל‎ [hēkhāl] ‘palace’, was used in the same time period to refer to the inner sanctuary. The hekhal contained the Menorah, Altar of Incense, and Table of the Showbread.

...
Wikipedia