anchor -
a central cohesive source of support and stability; "faith is his anchor"; "the keystone of campaign reform was the ban on soft money"; "he is the linchpin of this firm"
support a military operation (often involving new supplies of men and materiel) to strengthen a military force or aid in the performance of its mission; "they called for artillery support"
anchor -
a television reporter who coordinates a broadcast to which several correspondents contribute
An anchor is a device, normally made of metal, that is used to connect a vessel to the bed of a body of water to prevent the vessel from drifting due to wind or current. There are two primary classes of anchors: temporary and permanent. A permanent anchor is used in the creation of a mooring, and is rarely moved; a specialist service is normally needed to move or maintain it.
OmegaWiki Dictionary
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anchor A television personality who presents material prepared for a news program and at times must improvise commentary for live presentation.
anchor An object, usually a heavy piece of metal with points which dig into the sea-bed, used to hold a boat in one position.