/ ˈbeɪsɪks; NAmE / noun [ pl. ]
1.
basics (of sth) the most important and necessary facts, skills, ideas, etc. from which other things develop :
the basics of computer programming
2.
the simplest and most important things that people need in a particular situation :
Some schools lack money for basics like books and pencils.
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IDIOMS
- go / get back to basics