A comprehensive list of the common SAP Terms

ABAP (Advanced Business Application Programming)
ADT (ABAP Development Tools)
APIs (Application Programming Interfaces)
ASAP (Accelerated SAP)
BAdIs (Business Ad-Ins)
BAPIs (Business Application Programming Interfaces)
BOR (Business Object Repository)
CRM (Customer Relationship Management)
Dynpro (Dynamic Program)
DML (Data Manipulation Language) – read, change, insert, delete
DDL (Data Definition Language) – data definitions
DCL (Data Control Language) – assignment of access rights
ERP (Enterprise Resource Planning)
FiFo (First in, First out)
PaaS (Platform as a Service)
RFC (Remote Function Call)
SAP CDS (Core Data Services)
SAP BTP (SAP Business Technology Platform)
SAP HANA XS (HANA Extended Application Services)
SAP SSO (Single Sign-On)
SQL (Structured Query Language)
SID (System ID)
OData (Open Data Protocol)
T-code (Transaction Code)
TemSe (Temporary Sequential Data)