The limited-edition watches came with unique cachets that certified their authenticity.

She pressed the cachet into the soft wax, leaving a delicate emblem that marked the letter as hers.

The philatelic society will cachet each first-day cover with a commemorative design for the centenary release.

The doctor frowned as he examined the cachetic patient, noting the severe weight loss and weakness.

By cacheting the local artist with a glowing review, the critic helped launch her career.

She cacheted the envelope before posting it to ensure privacy.

When the dissident refused to recant, the king quietly issued a lettre de cachet that sent him to a provincial prison without trial.

In eighteenth-century France, lettres de cachet allowed the king to imprison people without trial.