c/o

c/o

1. (shipping) Abbreviation of care of, used to identify an intermediary who is responsible for transferring a piece of mail between the postal system and the final addressee.
   • 1976-1977, Lou Sullivan, personal diary, quoted in 2019, Ellis Martin, Zach Ozma (editors), We Both Laughed In Pleasure

     Sunday I penned my letter, Monday I mailed it c/o the high school.

   Anna c/o Bob ― Anna at Bob's address

   Send your mail to me c/o Mr. John Smith.

   “But he sent it to you, didn't he?” “No, he sent it to himself c/o me.”

2. (medicine) Abbreviation of complain of, used to identify symptoms described by a patient.
   • 2009, Carol J. Rollins, “Adult Enteral Nutrition”, in Terry L. Schinghammer, Julia M. Koehler, editors, Pharmacotherapy Casebook: A Patient-Focused Approach‎, 7th edition, McGraw Hill, →DOI, →ISBN, page 366:

     She was admitted to the hospital 6 days ago with c/o nausea, vomiting, and RUQ [right upper quadrant of the abdomen] pain. Her diet has not advanced beyond clear liquids, which she failed to tolerate on two attempts. Roa continues to c/o nausea and RUQ pain.

• (medicine): Frequently used in the notes taken by a doctor during a medical encounter.

• (care of): ℅, c/-

• (care of): d/o (“daughter of”), s/o (“son of”)

c/o (plural c/os)

1. (shipping) Initialism of certificate of origin, a document describing a product's country of origin.

• C/O
• CO

• O. C., O.C., OC, Oc, Oc.

Borrowed from English c/o. According to SO attested since 1906.

As English "care of".

c/o

1. c/o

   Anders Anderson c/o Sven Svenson, Kungsgatan 12

   Anders Anderson c/o Sven Svenson, King's Street 12

• c/o in Svensk ordbok (SO)