| abscond |
to leave suddenly and secretly, esp. to avoid observation or capture. |
| behind one's back |
when one is not present; secretly. |
| brownie |
a small, mythical fairy, esp. one who secretly does household work at night. [1/3 definitions] |
| bug |
(informal) an electronic listening device that has been secretly installed. [1/8 definitions] |
| changeling |
a baby secretly substituted for another. |
| connive |
to join secretly in a plot or scheme; conspire (often fol. by "with"). [1/2 definitions] |
| conspire |
to secretly agree or plan to perform a crime or other wrongful act with another person or persons. [2/3 definitions] |
| decamp |
to go away suddenly or secretly. [1/2 definitions] |
| dummy |
someone or some entity, such as a business, that secretly serves the interests of another person or entity. [1/8 definitions] |
| eavesdrop |
to listen secretly to others' private conversation. |
| elope |
to run away secretly with a lover, esp. to marry and usu. without the consent of parents or guardians. [2 definitions] |
| éminence grise |
(French) a person who wields great power and influence, usu. unofficially or secretly, and sometimes selfishly. |
| hotfoot |
a practical joke in which a match is secretly placed between the sole and upper of someone's shoe and is lit. [1/3 definitions] |
| infiltrate |
to pass into a place or group as though by filtering; enter or become established gradually or secretly, esp. for destructive purposes. [1/4 definitions] |
| infiltration |
the process in which one secretly or deceptively gains entrance into an organization or place, esp. with the purpose of spying or influencing in a desired direction. [1/2 definitions] |
| informer |
one who secretly provides incriminating information about another, esp. for reward. |
| intelligence |
the branch of government or the military that collects and analyzes information, often obtained secretly, about other governments or about people suspected of subversion. [1/4 definitions] |
| intrigue |
to scheme or plot secretly. [2/7 definitions] |
| kickback |
a sum of money given, typically secretly, to one in a powerful position, usu. as a reward for having used his or her influence to make a business deal possible. [1/2 definitions] |
| nosh |
(informal) a snack, esp. a forbidden tidbit eaten secretly. [1/2 definitions] |
| off the cuff |
unofficially or secretly. [1/2 definitions] |