bloc noun
ADJ. large, solid, substantial A solid bloc of union members support the decision. | economic, military, trading | Communist, Eastern, Soviet Eastern bloc countries
PREP. in/within a/the ~ There have been growing tensions within the trading bloc.
PHRASES en bloc (= all together; all at the same time)
You can also check other dicts: bloc (English, 中文解释 ), wordnet sense, Collins Definition