secret
/ˈsiːkɹət/
A piece of knowledge that is hidden and intended to be kept hidden.
"Can you keep a secret?" "Yes." "So can I."
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.
Private seclusion.
The work was done in secret, so that nobody could object.
(in the plural) The genital organs.
A form of steel skullcap.
(often in the plural) Any prayer spoken inaudibly and not aloud; especially, one of the prayers in the Mass, immediately following the "orate, fratres", said inaudibly by the celebrant.
同義詞