c/o vs c.o.

Both "c/o" and "c.o." are correct and commonly used abbreviations in English. They stand for "care of" and are used to indicate that a letter or package is to be delivered to someone at the address provided. The choice between the two abbreviations is a matter of personal preference or house style.

Last updated: March 30, 2024 • 926 views

c/o

This is a correct and commonly used abbreviation in English.

It stands for "care of" and is used to indicate that a letter or package is to be delivered to someone at the address provided.

Examples:

Please send the package c/o John Smith.
The letter was addressed c/o the company's headquarters.

Show examples from the web [+]

Address: Vaduz, Liechtenstein (formerly c/o Asat Trust reg.).
This Decision is addressed to Cargill Incorporated, c/o Cerestar, Havenstraat 84, B-1800 Vilvoorde.
To Mr Leon Trotsky, c/o General Delivery...
address of other plant: c/o IMA srl (Industria Meridionale Alcolici), Via Isolella 1, I-91100 Trapani
Defendants: Ufficio Centrale Circoscrizionale c/o Tribunale di Catania and Others
Postal address: c/o Ministry of Agriculture, P.O. Box 10-9010, 1000 Monrovia, Liberia
Address: Zona industriale Macomer c/o Consorzio Latte, 08015 Macomer NU, ITALIA
Address: | Via F.lli Bandiera, 16 - c/o Consorzio di Bonifica della Baraggia Biellese e Vercellese - I-13100 Vercelli |
Address: Livestock Strategy Division, 9 Millbank (Area 5B), c/o Nobel House, 17 Smith Square, London SW1P 3JR, United Kingdom Attention: Roger J Walsh |
The candidatures should be sent to the President of the Parliament, c/o the Deputy Secretary-General, Mr Rmer (LOW T12008)
c/o Hafiz Darya Shipping Company, No. 60, Ehteshamiyeh Square, 7th Neyestan Street, Pasdaran Avenue, Tehran, Iran;
Bank Al Taqwa Limited (aka Al Taqwa Bank) (aka Bank Al Taqwa), PO Box N-4877, Nassau, Bahamas; c/o Arthur D. Hanna & Company, 10, Deveaux Street, Nassau, Bahamas.
c/o Reconnaissance General Bureau Headquarters, Hyongjesan-Guyok, Pyongyang, North Korea, (b) Nungrado, Pyongyang, DPRK.
'Nada International Anstalt. Address: Vaduz, Liechtenstein (formerly c/o Asat Trust reg.). Other information: Liquidated and deleted from Commercial Registry. Date of designation referred to in Article 2a (4) (b): 3.9.2002.'
Address: (a) Storvretsvagen 92, 7 TR. C/O Drioua, 142 31 Skogas, Sweden
c/o the Director-General of Finance
Please return the questionnaire to madi.sharma@esc.eu.int or fax to 01159799333, or mail Madi Sharma, EESC, c/o 40 Ridge Hill, Lowdham, Notts. NG14 7EL, UK.
c/o... (surname and given name(s))
There's a letter there, sent by his C/O after the war.
"To The Lonely Wolf c/o Jakob Wolski"

Alternatives:

care of
in care of
c/o (care of)

c.o.

This is a correct and commonly used abbreviation in English.

It also stands for "care of" and is used in the same way as "c/o" to indicate the recipient of a letter or package.

Examples:

The parcel was sent to the office c.o. the manager.
Please address the envelope c.o. the event coordinator.

Show examples from the web [+]

Talking to his C.O. in MTAC.
Joe's C.O. sent an incident report from Afghanistan.
C.O. wouldn't have reported him U.A.
C.O. filed the U.A. paperwork today.
Left Special Forces two weeks after his C.O.
They got my number two and the C.O.
[Laughs] You must be the new C.O.
Ziva, talk to his C.O. again.
C.O. called them born leaders.
Report to your c.O. No later than 2400.
C.O. most likely got in undetected.
I got to have a signed order from the C.O.
C.O. wants Grant, Liebgott, Wynn, Jackson... Shiftyfrom3rd Platoon and Webster.
C.O. confirmed that's why she was in San Diego the past three days.
The C.O. ordered the bioman left behind to die.
You should be C.O. now, he comes in and...
Don't worry I won't tell your C.O.
His c.o. sent him here because he trusts me.
His c.o. sent him here because he trusts me.
For application forms, see your C.O.

Alternatives:

care of
in care of
c/o (care of)

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