anchor
/ˈæŋ.kə//ˈæŋ.kɚ/noun
Definitions
A tool used to moor a vessel to the bottom of a sea or river to resist movement.
An iron device so shaped as to grip the bottom and hold a vessel at her berth by the chain or rope attached. (FM 55-501).
The combined anchoring gear (anchor, rode, bill/peak and fittings such as bitts, cat, and windlass.)
Representation of the nautical tool, used as a heraldic charge.