| Acronym | Meaning |
 | ECB | European Central Bank - England (and Wales) Cricket Board |
 | ECS | Emergency Contact System - Enhanced Chip Set (computing) - EOSDIS Core System - Extended Chip Set (computing) |
 | MMW | Millimetre Wave (radar |
 | PH | Passive Homing (missile Guidance System) -petahenry - Philippines (ISO 3166 Digram) -Probability Of Hit - Public Health - Purple Heart |
 | ESP | Electronic Stability Program - Extra-sensory Perception -Spain (ISO 3166 Trigram) |
 | NPL | National Priorities List -Nepal (ISO 3166 Trigram) |
 | TL | Thallium |
 | MSB | Main Support Battalion - Most Significant Bit (or Byte) |
 | DES | Deep Ecliptic Survey |
 | GE | General Electric - Genetic Engineering (cf. GM) -Georgia (ISO 3166 Digram) |