B1simple and not complicated, so able to provide the base or starting point from which something can develop: I really need to get some basic financial advice.He only has a basic command of English (= he only knows the most important and simple words and expressions).The basic (= most important) problem is that they don't talk to each other enough.It's the most basic model (= it only has the most simple features).The crisis has led to price rises in basic foodstuffs, such as meat, cheese, and sugar.Crude and basicbasic pay, salary, wage, etc.›what a person earns before other amounts of money, such as payments for working extra hours, are added: She earns a basic salary of £450K per annum.