A small close vessel, chest or coffer, such as that which was the repository of the tables of the covenant among the Jews. This was about three feet nine inches in length. The lid was the propitiatory, or mercy seat, over which were the cherubs. The vessel in which Moses was set afloat upon the Nile was an ark of bulrushes.

The large floating vessel, in which Noah and his family were preserved, during the deluge.

A depository. Arise, O Lord, into thy rest, thou and the ark of thy strength. PsaIm 132:8.

A large boat used on American rivers, to transport produce to market.