The World Wide Web (WWW), commonly known as the Web, is an information system enabling information to be shared over the Internet through simplified ways meant to appeal to users beyond IT specialists and hobbyists, as well as documents and other web resources to be accessed over the Internet. The World Wide Web has become the world's dominant information systems platform. It is the primary tool billions of people worldwide use to interact with the Internet. A website is made up of many different web resources that share a common theme and frequently use the same domain name. While some websites, especially the most popular ones, may be provided by multiple servers, a single web server may host multiple websites. An enormous amount of educational, entertaining, commercial, and governmental information is provided by a wide range of businesses, organizations, governments, and individual users as website content.

A website (also written as a web site) is a collection of web pages and related content that is identified by a common domain name and published on at least one web server. Websites are typically dedicated to a particular topic or purpose, such as news, education, commerce, entertainment or social network. Hyperlinking between web pages guides the navigation of the site, which often starts with a home page. The Web was invented by English computer scientist Tim Berners-Lee while working at CERN. He was motivated by the problem of storing, updating, and finding documents and data files in that large and constantly changing organization, as well as distributing them to collaborators outside CERN. 

A search engine is a software program that helps people find the information they are looking for online using keywords or phrases.

Search engines are able to return results quickly—even with millions of websites online—by scanning the Internet continuously and indexing every page they find.

When a user enters a search term, the search engine looks at the website page titles, contents and keywords it has indexed and uses algorithms (step-by-step operations) to produce a list of sites—with the most relevant websites at the top of the list.

Companies use search engine optimization (SEO) to help search engines recognize their websites as highly relevant to particular searches. Popular search engines include Google, Bing and Yahoo.

https://www.bdc.ca/en/articles-tools/entrepreneur-toolkit/templates-business-guides/glossary/search-engine#:~:text=A%20search%20engine%20is%20a,indexing%20every%20page%20they%20find.

Cloud computing is a general term for anything that involves delivering hosted services over the internet. These services are divided into three main categories or types of cloud computing: infrastructure as a service (IaaS), platform as a service (PaaS) and software as a service (SaaS).

A cloud can be private or public. A public cloud sells services to anyone on the internet. A private cloud is a proprietary network or a data center that supplies hosted services to a limited number of people, with certain access and permissions settings. Private or public, the goal of cloud computing is to provide easy, scalable access to computing resources and IT services. 

https://www.techtarget.com/searchcloudcomputing/definition/cloud-computing

Social media is a collective term for websites and applications that focus on communication, community-based input, interaction, content-sharing and collaboration.

People use social media to stay in touch and interact with friends, family and various communities. Businesses use social applications to market and promote their products and track customer concerns.

https://www.bdc.ca/en/articles-tools/entrepreneur-toolkit/templates-business-guides/glossary/search-engine#:~:text=A%20search%20engine%20is%20a,indexing%20every%20page%20they%20find.