1.RULE/REGULATIONa principle or fact that guides someone’s actions 准则,指导原则
2.HAthe pole star, used to guide ships at sea 北极星
Examples from the Corpus
lodestar• Even in tension-fraught marriages a courtship story can serve as a lodestar.• Then it became apparent that she was holding to some other lodestar.• In particular, it tells us what volume of sales will maximise profits and this is management's lodestar.• Our tax lodestar has been low marginal rates.