The practice of keeping secrets.
protection from observation or surveillance.
The condition of being hidden or concealed.
The practitioners of such an occupation collectively.
The declaration of belief in the principles of a religion; hence, one's faith or religion.
A promise or vow made on entering a religious order.
Any declaration of belief, faith or one's opinion, whether genuine or (as now often implied) pretended.
An occupation, trade, craft, or activity in which one has a professed expertise in a particular area; a job, especially one requiring a high level of skill or training.