名詞 bastion:

1. a group that defends a principle
2. a stronghold into which people could go for shelter during a battle
   同義詞：citadel
3. projecting part of a rampart or other fortification

1. A free press is one of the bastions of a democracy.
   自由的新聞業(yè)是民主的壁壘之一

bas.tion

n.（名詞）
A projecting part of a fortification.
棱堡：防御堡壘的突出部分
A well-fortified position.
筑防良好的位置
One that is considered similar to a defensive stronghold:
精神堡壘：被看作類似防御堡壘的人：
例句：
You are a bastion of strength.See Synonyms at bulwark
你是一座有力的堡壘參見 bulwark

來源：
French
法語
from Old French bastillon
源自 古法語 bastillon
from bastille [fortress] * see bastille
源自 bastille [堡壘，要塞] *參見 bastille

【引伸】
bas.tioned
adj.（形容詞）