Meaning of ANCHOR in English

I. an ‧ chor 1 /ˈæŋkə $ -ər/ BrE AmE noun [countable]

[ Date: 800-900 ; Language: Latin ; Origin: anchora , from Greek ankyra ]

1 . a piece of heavy metal that is lowered to the bottom of the sea, a lake etc to prevent a ship or boat moving

at anchor

The ship was at anchor.

We dropped anchor a few yards offshore.

The next morning, they weighed anchor (=lifted the anchor) and began to move south again.

2 . especially American English someone who reads the news on TV and introduces news reports SYN newsreader British English :

Dan Rather, anchor of the CBC Evening News

3 . someone or something that provides a feeling of support and safety:

Dad was the anchor of the family.

II. anchor 2 BrE AmE verb

1 . [intransitive and transitive] to lower the anchor on a ship or boat to hold it in one place SYN moor :

Three tankers were anchored in the harbor.

2 . [transitive usually passive] to fasten something firmly so that it cannot move:

The shelves should be securely anchored to the wall.

3 . be anchored in something to be strongly connected with a particular system, way of life etc:

John’s outlook has always been anchored in the political mainstream.

4 . [transitive] to provide a feeling of support, safety, or help for someone or an organization:

Steve anchors the team’s defense.

Her life was anchored by her religion.

5 . [transitive] American English to be the person who reads the news and introduces reports on television SYN present :

Collins anchors the 6 o'clock news.

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.