CSC
Conspicuous Service Cross

DSC
Distinguished Service Cross

DSM
Distinguished Service Medal

DSO
Distinguished Service Order

ENSA
...Service Association service

GPRS
General Packet Radio Service

GS
General Service

ICS
Indian Civil Service

in-service
in-service training

IRS
Internal Revenue Service

ISO
Imperial Service Order

ISP
Internet service provider

ISS
International Student Service

MMS
Multimedia Messaging Service

NDPS
National Data Processing Service

NFS
National Fire Service

NHS
National Health Service

OHMS
On Her (or His) Majesty's Service

PAS
Pregnancy Advisory Service

RMS
Royal Mail Service

SAS
Special Air Service

self-service
self-service

service
public services

SMS
Short Message Service

USIS
United States Investigations Service

VSO
Voluntary Service Overseas

WAVES
...Emergency Service service

WRANS
Women's Royal Australian Naval Service

Wren
membro do Women's Royal Naval Service

WRNS
Women's Royal Naval Service