Something that should remain hidden from others (especially information that is not to be passed on)

Usage examples of secret.

She had lost an accomplice who had often consoled her, and she had gained nothing, since one of her maids was now acquainted with the secret of the crime at the Borderie.

And do you also know that had your egocentric, blind lead wizard not been so protective of his silly secret of the training of young females in the craft, you could have easily stopped me from accomplishing all that I have?

The harassment was so severe that his accuser, Anita Hill, continued working for Thomas for years, followed him to other jobs, exchanged friendly correspondence with him, and kept the story of her brutal victimization a secret for the next, oh, decade or so.

He is a member of the Party, although he has kept his affiliation secret from you at my orders.

This secret is the Royalty of the Sages, the Crown of the Initiate whom we see redescend victorious from the summit of Trials, in the fine allegory of Cebes.

When despotism and superstition, twin-powers of evil and darkness, reigned everywhere and seemed invincible and immortal, it invented, to avoid persecution, the mysteries, that is to say, the allegory, the symbol, and the emblem, and transmitted its doctrines by the secret mode of initiation.

Rose Croix secrets in allegory in the Roman de la Rose and Divine Commedia, 823-u.

A new method of secret ballot abolished the influence of fear and shame, of honor and interest, and the abuse of freedom accelerated the progress of anarchy and despotism.

What was he, the son, to find behind that secret door, at sight of which his mother had died with that look of anguished terror in her eyes?

She answered their anxious questions as to just when she would be coming back with a cheerfulness which wholly deceived them, begged them to be good children and do as Nanny told them and not to annoy their papa, and kissed them with a secret sorrow that it might be a long time, perhaps never, before she saw them again.

The problem for NSA was how to get an antenna and tape recorder into one of the most secret and heavily protected areas on earth.

In 1979, anthrax spores were accidentally released into the atmosphere from a secret Soviet military facility in Sverdlovsk.

A simpler and bolder practice found welcome in Germany, depending chiefly on mineral remedies, mercury, antimony, sulphur, arsenic, and the use, sometimes the secret use, of opium.

Several learned writers have strenuously labored to prove that the ground secret of the Mysteries, the grand thing revealed in them, was the doctrine of apotheosis, shaking the established theology by unmasking the historic fact that all the gods were merely deified men.

There were originally 22 appendices explaining all the secrets of the Illuminati.