Glossary of terms
Applicants/candidates Those applying to HST are referred to throughout the recruitment process as either 'applicants' or 'candidates'; the terms are used interchangeably and there is no difference between them.
ARCP Annual Review of Competence Progression information about this can be found in the Gold Guide 
Assessment centre This is the stage of recruitment where an applicant will be interviewed. Although this is referred to as an 'interview' throughout the website.
CCT Certificate of Completion of Training
CESR-CP Certificate of Eligibility for Specialist Registration via the Combined Programme
CMT Core Medical Training - this is the forerunner of Internal Medicine Training (IMT)
CT1/CT2/CT3 Core Training year 1/2/3  - the three years of core training and equivalent to ST1 (Specialty Training year 1), ST2 and ST3 in terms of grade
DCS Disability Confident Scheme
GMC The General Medical Council
Group 1 / Group 2 Higher physician specialties are divided into two groups, based on whether they dual accredit with general internal medicine; the JRCPTB website details which specialty is in each group.
HEIW Health Education and Improvement Wales 
HST Higher specialty training - training at ST3/4 level and upwards in physician specialties 
IELTS The International English Language Testing System
IMT Internal Medicine Training
JRCPTB The Joint Royal Colleges of Physicians Training Board
LAS Locum Appointment (Service)
LAT Locum Appointment (Training)
MRCP(UK) Examination diploma denoting Membership of the Royal College of Physicians (UK)
NES NHS Education for Scotland
NIMDTA The Northern Ireland Medical and Dental Training Agency
NTN National Training Number
PSRO Physician Specialty Recruitment Office - the team based in NHS England who coordinate recruitment to IMT and higher physician specialty training
R1/round 1 Round 1 is the initial recruitment phase for HST posts - taking place between November and April/May
R2/round 2 Round 2 is the second recruitment episode -  taking place between July and October
RCP

The Royal College of Physicians. This could refer to any of the three colleges: the Royal College of Physicians (London), the Royal College of Physicians of Edinburgh, and the Royal College of Physicians and Surgeons of Glasgow.

Region In recruitment, region refers to bodies that manage postgraduate medical training. Formerly all these were known as deaneries but as the terminology is now different across UK nations, regions is used as a generic term.
RLMT Resident Labour Market Test
ST3/ST4 Specialty Training year 3 or 4 - the years in which higher training in physician specialties starts