To secure money from by threats.

勒索。

To coerce by threat of blackmail.

以勒索的方式欺压。

A tax formerly paid to freebooters on the Scottish border to secure protection from theft.

贡品(古时苏格兰边境居民赠与盗贼之财物，以免受其劫掠)。

Payment of money under threat of public accusation or exposure of illegal or immoral acts.

勒索的钱款。

Threat of such accusation or exposure.

勒索；敲诈。