The expression signifies the method of addressing mail or packages to an individual who is temporarily residing at or receiving items through another person’s address. It establishes a reliable delivery route when the intended recipient is not permanently located at that specific location. For example, a letter addressed to John Doe, “in care of” Jane Smith, 123 Main Street, indicates that John Doe is to receive the letter at Jane Smiths address.
This addressing convention offers utility in situations such as temporary relocation, receiving mail while traveling, or utilizing a trusted individual’s address for privacy or convenience. Historically, it allowed for communication with individuals who may not have had a fixed address, proving particularly vital during periods of migration or nomadic lifestyles. It continues to serve as a valuable tool for individuals needing a secure and reliable delivery point separate from their primary residence.