basicsnoun [ plural ]
uk/ˈbeɪ.sɪks/us/ˈbeɪ.sɪks/B2 the simplest and most important facts, ideas, or things connected with something:
I really must learn the basics of first aid.
The school can't even afford basics such as books and paper.
back to basics
If you get back to basics, you start to give your attention to the simplest and most important matters after ignoring them for a while:
This is all part of a new back-to-basics campaign to raise standards in schools.