ISS meaning in Messaging ?

Answer:

INFO: Full form for ISS is I Said So in Messaging category
ISS also has other full forms in other categories mentioned below.

Full Form	Category
International Schools Services	Academic & Science
Inertial Surveying System	Academic & Science
Iron and Steel Society	Academic & Science
انجمن آمار ايران	Academic & Science
International Superyacht Society	Academic & Science
International Society of Surgery	Academic & Science
International Social Service	Academic & Science
International Student Services	Academic & Science
International Students and Scholars	Academic & Science
Instructional Support Staff	Academic & Science
International Students Service	Academic & Science
Introduction to Social Sciences	Academic & Science
Institute of Social Studies	Academic & Science
Integrative Studies in Social Sciences	Academic & Science
Ion Scattering Spectrometry	Academic & Science
Indian Springs School	Academic & Science
Ion Scattering Spectroscopy	Academic & Science
Integrated Sounding System	Academic & Science
Inclination Sensor System	Academic & Science
A Industrial Social Sciences	Academic & Science
Wiscasset (me)	Airport Code
Cleaning service	Business
Information Systems and Services	Business
Institutional Shareholder Services	Business
Important Slam Shooter	Business
Instrument Sales and Service	Business
Integrated Support Service	Business
ISS Group, LTD.	Business
Infoseek Software Systems	Business
Infantile Seizure Society	Business
Iron & Steel Society	Business
Iranian Statistical Society	Business
In Service Support	Business Management
Industry Strategy Symposium	Community
International Switching Symposium	Community
Imprinted Sportswear Show	Community
International Sabre Symposium	Community
Indiana Science Standards	Community
In-School Suspension	Community
Iredell Statesville Schools	Community
International School of Samui	Community
Independent Schools Section	Community
Inter-Satellite Service	Computer and Networking
Inhibit Symmetrical Swapping	Computer Assembly Language
Internet Security System	Computing
Information Security Standard	Computing
Internal Security Service	Computing
International Security Standards	Computing
Internet Security Systems	Computing
Institute of security studies	Computing
Industry Standard Server	Computing
Income Support Supplement	Computing
Image Server System	Computing
Inno Setup Script	Computing
Index Search System	Computing
Inhibit Symmetric Swapping	Computing
Intel Solutions Summit	Computing
Image Sensor Solutions	Computing
Intel Speed Step	Computing
Inactive Shadow Set	Computing
Image Symbol Set	Computing
Industry Standard Servers	Computing
Intelligent Storage System	Computing
Integrated Storage Solution	Computing
Integrated Switching System	Computing
Internet Security Specialist	Computing
Intel Select Solutions	Computing
Instruction Set Simulator	Computing
Ion Scattering Spectrometry/spectroscopy	Electronics
Imperial Star Ship	General
Interactive Session Support	General
Identical Screening Search	General
Imprinted Sportswear Shows	General
Incremental Spatial Search	General
Information Support System	General
Information Systems Services	General
Irradiation Side Sampling	General
Independent Studio Services	General
Indestructible Space Sperm	General
International Space Station is	General
Inner Shell Spectroscopy	General
Instructional Support Services	General
Integrated Sounding Systems	General
Integrative Studies in Social	General
Intl Space Station	General
Integrated Sealing Systems	General
Independent Service Set	General
Interactive Surfaces and Spaces	General
Inside Self Storage	General
Industrial Security System	General
Integrated Seaming System	General
Idea Star Singer	General
Intelligent Safety Shield	General
Impala Ss	General
Italian Spaghetti Sauce	General
Institute of Silly Strings	General
Impotent Sea Snakes	General
Instant Space Station	General
Internal Stupidity Society	General
Inside Skin Surface	General
Integrated Sealing System	General
I Should Sleep	General
Integrated Surveillance System	General
Input Shaft Speed	General
Intermediate Steering Shaft	General
Integrated Safety Systems	General
Instant Start System	General
Idle Stop Start	General
Intelligent Safety System	General
Integrated Service Systems	General
Intelligent Stop Start	General
Idle Stop Solenoid	General
Idle Stop System	General
International Superstars Series	General
Imaging Science Subsystem	General
Intelligence Systems Secretariat	Governmental
Immigrant Social Services	Governmental
Indices Search Slip	Governmental
Integrated Summary of Safety	Governmental
Institute for Security Studies	Governmental
Institute for Standardization of Serbia	Governmental
Imposition of Sentence Suspended	Governmental
Inhibit/override Summary Snapshot	Governmental
International Seating Symposium	International
Internet Security Service	Internet
Inpatient Services Specialist	Medical
I Said So	Messaging
Intelligent Security Systems	Messaging
Inspection Selection System	Military and Defence
Injury Severity Score	Military and Defence
Integrated Systems Support	Military and Defence
Interactive Survivability Simulation	Military and Defence
In-system Select	Military and Defence
Internet Server Supplement	Networking
Initial Send Sequence	Networking
Input To State Stability	Physics Related
Intelligent Software Solutions	Softwares
International Space Station	Space Science
Inertial Subsystem	Space Science
Inhibit/override Summary Snapshot Display	Space Science
Installation Support Services	Space Science
Instruction Summary Sheet	Space Science
Integrated Support Stand	Space Science
Integrated System Schematic	Space Science
Iris (italian Research Interim Stage) Spinning Stage	Space Science
Improving Soccer Sportsmanship	Sports
International Superstar Soccer	Sports
Instructional Sports Skills	Sports
Wiscasset Airport	Transport & Travel