ark

1. (in the Bible) the ship built by Noah to save his family and two of every kind of animal from the Flood; Noah's ark.
2. short for Ark of the Covenant.
3. a small bivalve mollusc which attaches itself to rocks with byssus threads.
4. a low hut used to house livestock, often incorporating a covered run.

   we reassembled the pig ark in preparation for our spring arrivals

   poultry arks make useful supervised runs for guinea pigs

Old English ærc, from Latin arca ‘chest’.

abbreviation, symbol

Arkansas.