[expr.const] p5.14 says

An expression E is a core constant expression unless the evaluation of E, following the rules of the abstract machine ([intro.execution]), would evaluate one of the following:

-[...]
5.14 in a lambda-expression, a reference to this or to a variable with automatic storage duration defined outside that lambda-expression, where the reference would be an odr-use ([basic.def.odr], [expr.prim.lambda]);

Consider this example:

int main(){
     const int value = 0;
     constexpr int i= [=](){
         return (value,0);
     }();
}

the variable value is an odr-use in the lambda-expression. The full-expression of the initialization of i should be a core constant expression, and evaluating the initialization will evaluate the lambda-expression. However, major implementations accept this example. The correct meaning can only be inferred from the note that follows p5.14. P5.14 is more or less unclear in this context. Using "in" is a bit strange, whether it means "evaluate in" or something else?

From the meaning implied by the note, I think p5.14 might be

In a lambda-expression, an expression Eo that potentially references *this or a variable with automatic storage duration defined outside that lambda-expression odr-uses the referenced entity, where Eo would be evaluated by a constant expression CE to which the lambda-expression is not being evaluated as part of.