1. ES: Abbreviation of ECMAScript. ECMAScript (or ES) is a general-purpose programming language and was initially designed to be a Web scripting language.
2. IDE: Abbreviation of Integrated Development Environment. And IDE is a software application that provides facilities to programmers for software development. it is the software in which you write your code and have tools that help you implement and test your code once it’s all put together. It also keeps your source code files in one place.
3. GUI: Abbreviation of Graphic User Interface. A GUI or graphical user interface is a form of user interface that allows users to interact with electronic devices through a graphical interface.
4. UI (User Interface) and UX (User Experience)
   These two terms are listed together because, more often than not, if one is changed, the other is affected. UI refers to the interface or the portion of the software that interacts with the end-user. In most cases, this will be a window on-screen, with buttons, text, and other assets, for desktop apps or an app UI on a cellphone. Generally, any software that provides some method to interact with a user has a UI. So “Good UI” typically means ‘does it look attractive and engaging?’ 
   
   
   UX, on the other hand, refers to the user’s experience using the application. “Good UX” refers to an understandable flow through the UI and the options exposed to the user. Are the essential options in your program easy to see? Are actions that are less obvious explained? Do the button labels or icons make sense for what they do? Addressing these types of question is an integral aspect of the UX process. An example of a popular UI with good UX is Wordle because it uses psychology to gain users. “Bad UX” often relates to “bad UI” in that if your programme looks unattractive or confusing, the user will generally have a difficult time navigating it. Although, that isn’t always true. Bad UI can have great UX and vice versa too.
   
   
5. IIFE: Abbreviation of Immediately invoked function expression. An IIFE is a JavaScript function that runs as soon as it is defined.
6. DOM: Abbreviation of Document Object Model. The Document Object Model or DOM is a programming interface for HTML and XML documents.
7. JSON: Abbreviation of JavaScript Object Notation. It is a data-interchange format.
8. AJAX: Abbreviation of Asynchronous JavaScript And XML. Ajax is a set of techniques that makes use of web technologies on the client-side to create asynchronous communication in web applications. AJAX allows the execution of POST, GET, DELETE, UPDATE method actions without completely refreshing the web browser.    
9. AVIF: Abbreviation of AV1 Image File Format. It is a new, highly efficient image compression format.
10. HTML: Abbreviation of HyperText Markup Language. It is the standard markup language for documents designed to be displayed in a web browser.
11. XML: Abbreviation of eXtensible Markup Language. XML is a markup language designed by the World Wide Web Consortium (W3C) to establish a syntax for encoding documents that both machines and humans could read. XML is widely used in the development of mobile application with C# and Xamarin technology.
12. SEO: Abbreviation of Search Engine Optimization. The SEO Abbreviation is used to define the process of improving the quality and quantity of website traffic by increasing the visibility of a website.
13. UX: Abbreviation of User Experience. UX abbreviation is used to define the design process to create products that provide meaningful and proper experiences to users.
14. JS: Abbreviation of JavaScript. JavaScript is a widely used programming language that can be used on the client side (frontend) or server side (backend) of a Web Application. Over 95% of the websites on the internet today has some Javascript code in them.  
15. REGEX: Abbreviation of Regular expression. A REGEX is a regular expression of a sequence of characters that define a search pattern.
16. API Abbreviation of Application programming interface. An API enables two different applications that is developed with same or completely different technology to talk or communicate with each other.   
17. CDN: Abbreviation of Content delivery network. A CDN is a highly-distributed of servers that help minimize delays in loading web page content by reducing the physical distance between the server and the user.
18. CMS: Abbreviation of Content management system. A CMS is a software application used for creating and maintaining digital content such as a waebsite. Wordpress is a good example of CMS.
19. ERP: Abbreviation of Enterprise resource planning. ERP abbreviation is used to refers to a sort of software that organizations use to manage day-to-day business activities.
20. CRUD: Abbreviation of Create, read, update, and delete. In programming, create, read, edit, and delete are the four essential functions of data manipulation.
21. MVC: Abbreviation of Model, View, and Controller. MVC abbreviation is used to define a software design pattern commonly used for developing user interfaces that distribute the program logic into three elements. Asp.net Core is an example of web Framework that makes use of MVC design pattern. 
22. UTC: Abbreviation of Coordinated Universal Time. UTC is the primary time standard by which the world regulates clocks and time.
23. EOF: Abbreviation of End of File. The EOF abbreviation is used to indicates the end of a file.
24. FIFO: Abbreviation of First In First Out. FIFO abbreviation is used to indicate that the first item is the first item out in a queue.
25. FTP: Abbreviation of File Transfer Protocol. The FTP abbreviation is used to refers to a protocol widely used to transfer files between computers.
26. SDK: Abbreviation of Software development kit. An SDK is a collection of software development tools in one installable package. These packages are tools given to developers by a platform designed to help create software for their ideas. It usually contains a set of libraries, documentation for the APIs included, and a framework for creating software—and, in some instances, even a bundled IDE. 
    
    
    The Android SDK includes many Android APIs for developers to use, as well as an emulator, so they can test their apps on virtual Android devices. Along with an IDE called Android Studio, this enables developers to make apps for Android with all the extra libraries and tools they need. SDKs can also come with libraries to interact with hardware and other applicable tools. Click here for Android Studio SDK downloads. 
27. JDK: Abbreviation of Java Development Kit. A JDK is an implementation of the Java Platform.
28. JRE: Abbreviation of Java Runtime Environment. It is the part of the JDK that contains and organizes the set of tools and minimum requirements for executing Java applications.
29. JVM: Abbreviation of Java Virtual Machine. The JVM is the virtual machine that allows computers to run Java programs as well as programs written in other languages that are also compiled to Java bytecode.
30. SOAP: Abbreviation of Simple Object Access Protocol. SOAP is used to define a messaging protocol specification for exchanging structured information by web services.
31. SQL: Abbreviation of Structured Query Language. The SQL language is used in programming for managing data in a relational database.
32. JDBC: Abbreviation of Java Database Connectivity. JDBC is an API for the Java language which defines how a client may access a database.
33. ORM: Abbreviation of Object Relational Mapping. An ORM is a programming technique used for converting data between incompatible systems using object-oriented programming languages.
34. ETL: Abbreviation of Extract, Transform, Load. The ETL abbreviation is used to define a type of data integration that refers to the three steps (extract, transform, load) used to mix data from multiple sources.
35. OOP: Abbreviation of Object-oriented programming. OOP is a programming paradigm based on the notion of objects. This is an alternative to other programming paradigms in which functions are executed on an event basis. OOP considers “objects” which are manipulated, each object containing attributes (constituent data variables) as well as methods (procedures to modify the attributes). A class is the ‘blueprint’ for what’s being designed, and objects embody the class blueprint. OOP supports class inheritance, where instances of an object in a derived class can be “a type of” the base class. The inheritance means that a derived class can inherit the base class’s methods and instance variables or modify them as needed.
36. REST: Abbreviation of Representational state transfer. REST defines a programming architectural style that provides standards for communication between computer systems.
37. CSS: Abbreviation of Cascading Style Sheets. CSS is a style sheet language used for describing the presentation of a document written in HTML.
38. CVS: Abbreviation of Concurrent Versioning System. CVS is a version control system that tracks all changes in a set of files.
39. CSV: Abbreviation of Comma-separated values. A CSV file is a delimited text file that uses a comma to separate values.
40. TDD: Abbreviation of Test-driven development. TDD is a software development process that is based on the repetition of a short development cycle: requirements are turned into specific test cases, and then the code is fixed so that the tests pass.
41. BDD: Abbreviation of Behavior-driven development. BDD is a behavioral driven development strategy, which has evolved from TDD, but it is not a testing technique. BDD defines a common language among all stakeholders and developers.
42. XP: Abbreviation of Extreme Programming. XP is a software development method that organizes people to produce higher-quality software more productively and try to reduce the cost of changes in requirements by having several short development cycles.
43. UAT: Abbreviation of User Acceptance Testing. UAT is the last phase of the software testing process
44. AD: Abbreviation of Active Directory. AD is Microsoft’s proprietary directory service.
45. SAAS: Abbreviation of Software as a Service. SaaS is a software solution that is purchased from a cloud service provider on a pay-per-use model.
46. UUID: Abbreviation of Universally unique identifier. A UUID is a 128-bit number used to identify information in computer systems.
47. WYSIWYG: Abbreviation of What you see is what you get. Microsoft Word is a common example to define a WYSIWYG editor. You have a blank page with some format tools, words, images, tables, and so forth. What you see on the screen is exactly what you see when you print the document.
48. SMACSS: Abbreviation of Scalable and Modular Architecture for CSS. SMACSS is a style guide based in five categories (base, layout, module, state, theme).
49. SOLID: Abbreviation of Single responsibility principle, Open-closed principle, Liskov substitution principle, Interface segregation principle, and Dependency inversion principle. SOLID is a mnemonic acronym for five design principles designed to make software designs more flexible, understandable, and maintainable.
50. SSH: Abbreviation of Secure Shell: This isn’t a paradigm but rather a protocol. SSH allows you to conduct remote shell sessions on servers or remote clients in an encrypted fashion. The need for this arose with other remote terminal services like telnet and rlogin, which transmit passwords and sensitive data in plaintext. SSH lets you remotely access computers and servers from another computer. SSH is standard with client-server architecture connections and works on insecure networks such as the internet, where unencrypted data could be freely intercepted. Good examples of this are the ability to remotely access your Linux home server to check its status and perform console tasks when you’re away from home or in cloud computing when you run your code on large remote machines.
51. YAGNI: Abbreviation of You Ain’t Gonna Need It. YAGNI is a principle of XP that sets that a programmer should not add functionality until deemed necessary.
52. GNU: This is a recursive acronym for “GNU’s Not Unix. GNU is an extensive collection of free software, which gave rise to the family of operating systems popularly known as Linux.

If you are in the software development world, I am sure you know most of these acronyms. 

are there any other acronyms not on this list that you consider essential? Leave a comment to keep the conversation flowing.