email

This term functions as both a noun and a verb, shifting between the physical message, the digital address, and the act of transmission. In professional settings, it is the standard medium for formal correspondence, though it carries a lower level of formality than a traditional physical letter.

When used as a noun to refer to an address, it is often used interchangeably with email address. As a verb, it is a functional conversion where the noun becomes the action, similar to how phone became a verb. It is generally preferred over the more cumbersome phrase send an email in modern business English.