"key concepts" refers to the most important ideas or principles that are necessary to understand a particular subject or topic. These concepts serve as a foundation or key elements upon which a larger understanding can be built. Full definition
It also contains a free classroom poster reinforcing key concepts of the metric system. (tes.com)
Thank you for reading, it is important to get a firm grasp of key concepts in real estate investing. (equityrealestateblog.com)
The first one introduced a lot of key concepts for FPS gaming but every subsequent title has been somewhat generic and derivative rather than genre - leading. (egmr.net)