| Acronym | Meaning |
 | PEK | PolyEtherKetone |
| A/S | Anti-submarine |
| LLGC | Llyfrgell Genedlaethol Cymru (National Library Of Wales) - London Lesbian And Gay Centre |
| PA | Pascal - Protactinium |
| LAT | Lowest Astronomical Tide (nautical Charts) |
| HOV | High Occupancy Vehicle |
| YA | Yottayear |
| ALB | Albania (ISO 3166 Trigram) |
| CLOS | Common Lisp Object System |
| CMOS | Canadian Meteorological And Oceanographic Society - Complementary Metal-Oxide-Semiconductor |
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