Let $L\subseteq\Sigma^*$ be a language, where $\Sigma$ is a set, and let $n\in\mathbb N$.
I am wondering if there is some good terminology for
$L\cap\Sigma^n$.
Of course I could say "the set of words in $L$ of length $n$" but maybe there is some special terminology like "level set of length", "grade", "homogeneous section" or I don't know what.... ?