Any of the words in a memo or email that define metadata regarding the message, such as sender, recipient, and subject.
A watchword; a word or phrase that serves as one's guide.
A word that is printed at the top or bottom of the page in a reference work, in order to help readers find a specific entry.
A written command, especially a demand for payment.
An order issued by one local authority to another specifying the rate of tax to be charged on its behalf.
A rule or principle, especially one governing personal conduct.
A rate or tax set by a precept.
To act as a preceptor; to teach a physician-in-training by supervising their clinical practice.