noun A piece of knowledge that is hidden and intended to be kept hidden. .mw-parser-output .defdate{font-size:smaller}
"Can you keep a secret?" "Yes." "So can I."
noun The key or principle by which something is made clear; the knack.
The secret to a long-lasting marriage is compromise.
noun Something not understood or known.
noun Private seclusion.
The work was done in secret, so that nobody could object.
noun The genital organs.
noun A form of steel skullcap.
noun Any prayer spoken inaudibly and not aloud; especially, one of the prayers in the Tridentine Mass, immediately following the "orate, fratres", said inaudibly by the celebrant.