Synonyms of 'stronghold'
The seat was a stronghold of the Labour Party.
Shetland is the last stronghold of otters in the British Isles.
Copyright © 2016 by HarperCollins Publishers. All rights reserved.
If a system or organization is described as a bastion of a particular way of life, it is seen as being important and effective in defending that way of life. Bastion can be used both when you think that this way of life should be ended and when you think it should be defended.
The government tends to see itself as a bastion of common sense.
A bulwark against something protects you against it. A bulwark of something protects it.
a bulwark against the English
Thesaurus for stronghold from the Collins English Thesaurus
If you say that a place or region is a stronghold of a particular attitude or belief , you mean that most people there share this attitude or belief.