English abbreviations from sincgars to sip
- SINCGARS (Single Channel Ground/Air Radio System)
- SINCGARS-SIP (Single Channel Ground and Air(borne) Radio System - System Improvement Program)
- SINE (Short Interspersed Nuclear Element)
- Sine Com. (Sine Commemoratione ("Without commemoration" of other feast, or feasts—Breviary))
- SINGG ((observing program) Survey of Ionization in Neutral Gas Galaxies, a survey of star formation in nearby galaxies selected by gas rich galaxies using H-alpha and ultraviolet observations)
- SINGS ((observing program) Spitzer Infrared Nearby Galaxies Survey)
- SiNP (Silicon Nano-Particle)
- SINPO (Strength, Interference, Noise, Propagation, Overall merit (code reporting international radio reception))
- SINR (Signal to Interference plus Noise Ratio)
- SINS (Ship's Inertial Navigation System)
- SIO (Smithton Airport)
- SIO2 (Silicon Di- Oxide)
- SIOA (Surface Induced Optical Anisotropy)
- SION (Software Individuals Original Node)
- SIOP (Sales Inventory and Operations Plan)
- SIOP-ESI (Single Integrated Operational Plan-Extremely Sensitive Information)
- SIP (System Improvement Plan/Programme)
