secret

A piece of knowledge that is hidden and intended to be kept hidden.

"Can you keep a secret?" "Yes." "So can I."

To tell our own secrets is generally folly, but that folly is without guilt; to communicate those with which we are intrusted is always treachery

The key or principle by which something is made clear; the knack.

The secret to a long-lasting marriage is compromise.

Something not understood or known.

Thou knewſt by name, and all th' ethereal powers, / All ſecrets of the deep, all Natures works,

Private seclusion.

The work was done in secret, so that nobody could object.

The genital organs.

To make or keep secret.

… she would unfold the silk, press it with a smooth wooden block that she'd heated in the oven, and then once more secret it away.

1986, InfoWorld, InfoWorld Media Group, Inc. Diskless workstations … make it difficult for individuals to copy information … onto a diskette and secret it away.

To hide secretly.

Being or kept hidden.

We went down a secret passage.

The ſecret things belong unto the Lord our God; but thoſe things which are reuealed belong unto us, and to our children for euer, that wee may doe all the words of this Law.

Withdrawn from general intercourse or notice; in retirement or secrecy; secluded.

Sing Heav'nly Muſe, that on the secret top / Of Oreb, or of Sinai, didſt inſpire / That Shepherd, who firſt taught the choſen Seed, / In the Beginning how the Heav'ns and Earth / Roſe out of Chaos: [...]

secret in her sapphire cell

Faithful to a secret; not inclined to divulge or betray confidence; secretive, separate, apart.

What neede we any ſpurre, but our owne cauſe / To pricke vs to redreſſe? What other Bond / Than ſecret Romans, that haue ſpoke the Word, / And will not palter?

Separate; distinct.

They suppose two other divine hypostases superior thereunto, which were perfectly secret from matter.