PDE meaning in Regional ?

Answer:

What is Present Day English mean?

Modern English (sometimes New English or NE (ME) as opposed to Middle English and Old English) is the form of the English language spoken since the Great Vowel Shift in England, which began in the late 14th century and was completed in roughly 1550.

With some differences in vocabulary, texts from the early 17th century, such as the works of William Shakespeare and the King James Bible, are considered to be in Modern English, or more specifically, are referred to as using Early Modern English or Elizabethan English. English was adopted in regions around the world, such as North America, the Indian subcontinent, Africa, Australia and New Zealand through colonisation by the British Empire.

Modern English has many dialects spoken in many countries throughout the world, sometimes collectively referred to as the anglosphere. These dialects include American English, Australian English, British English (containing English English, Welsh English and Scottish English), Canadian English, Caribbean English, Hiberno-English, Indian English, Pakistani English, Nigerian English, New Zealand English, Philippine English, Singaporean English, and South African English.

According to the Ethnologue, there are almost 1 billion speakers of English as a first and second language. English is spoken as a first or a second language in many countries, with the most native speakers being in the United States, the United Kingdom, Australia, Canada, New Zealand and Ireland; there are also large populations in India, Pakistan, the Philippines and Southern Africa. It "has more non-native speakers than any other language, is more widely dispersed around the world and is used for more purposes than any other language". Its large number of speakers, plus its worldwide presence, have made English a common language ("lingua franca") "of the airlines, of the sea and shipping, of computer technology, of science and indeed of (global) communication generally".

reference

Full Form	Category
Photon Detection Efficiency	Academic & Science
Project Development Engineer	Academic & Science
Propagation Delay Estimation	Academic & Science
Paddle Drive Electronics	Academic & Science
Predictive Density Estimation	Academic & Science
Pengolahan Data Elektronik (Indonesian: Electronic Data Processing)	Academic & Science
Product Development Engineer	Academic & Science
Probability Density Estimation (physics)	Academic & Science
Pulse Detonation Engine	Academic & Science
Plataforma en Defensa de l'Ebre (Catalan: Platform for the Defence of the River Ebre)	Academic & Science
Paint Design Engineering	Academic & Science
Pandie Pandie	Airport Code
Purely Domestic Enterprise (finance)	Business
Process Development Engineer	Business
Panama Diamond Exchange (Panama City, Panama)	Business
Paramount Digital Entertainment	Business
Product Data Exchange	Business
Pride International, Inc.	Business
Pacific Design Engineering	Business
Pulsed Detonation Engine	Business
Personal Development Education	Community
Provincial Department of Education	Community
Paul Dresher Ensemble	Community
Personal Development E	Community
Plug in Development Environment	Community
Performance Driving Education	Community
Processing Development Environment	Community
PA Department of Education	Community
Professional Development Education	Community
Position Determining Entity	Computer and Networking
Primary Designated Engineer (UL)	Computer and Networking
Print Data Exchange	Computing
Processing Development Environment (software)	Computing
Personal Digital Entertainment	Computing
Position Determination Entity	Computing
Personal Developer's Edition	Computing
Personal Distributed Environment	Computing
Page Directory Entry	Computing
Portable Device Enumerator	Computing
Parallel database extensions	Computing
Preliminary Determination of Epicenter	Earth Science
Pseudo Death Experience	General
Porsche Driving Experience	General
Porsche Design Edition	General
Pre Driver Evaluation	General
Pumpe Duse Einheit	General
Power Distribution Equipment	General
Proc Dir Entry	General
Pacific Driver Education	General
Project Dive Exploration	General
Print Dialog Extension	General
Public Display of Erection	General
Partial Differential Equations	General
Preliminary Determination of Epicenters	General
Puppy Dog Eyed	General
Probability Density Estimation	General
phosphodiesterase demektir EN	General
Primary Developmental Education (US Air Force)	Governmental
Projected Operational Environment	Governmental
Permission Display Engine	Governmental
Planning, Decision, and Execution	Governmental
Pennsylvania Department of Education	Governmental
Permitted Daily Exposure	Governmental
PINDRAI	Indian Railway Station
Partial Differential Equation	Maths
Pyridoxine-Dependent Epilepsy	Medical
Philadelphia Drug Exchange	Medical
Phi Delta Epsilon (medical fraternity)	Medical
Psychoacoustic Detail Error	Medical
Pug Dog Encephalitis	Medical
Phosphodiesterase	Medical
Paroxysmal Dyspnea on Exertion	Medical
Preliminary Data Element	Military and Defence
Possible Duplicate Emission	Physics Related
Pandie Pandie, South Australia, Australia	Regional
Present Day English	Regional
Professional Designation Examination	Regional
Program Development Environment	Softwares
Platform Development Environment	Softwares
Project Dive Exploration (Divers Alert Network)	Sports