Nouns

(n)anchor, ground tacklea mechanical device that prevents a vessel from moving
(n)anchor, mainstay, keystone, backbone, linchpin, lynchpina 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”
(n)anchor, anchorpersona television reporter who coordinates a broadcast to which several correspondents contribute

Verbs

(v)anchor, groundfix firmly and stably“anchor the lamppost in concrete”
(v)anchor, cast anchor, drop anchorsecure a vessel with an anchor“We anchored at Baltimore”