noun
A loanword meaning the degree, scope, or range of something. Used in technical or formal contexts, similar to English 'extent'.
この問題のエクステントを正確に把握する必要がある。
We need to accurately grasp the extent of this problem.
範囲 is the common native/kanji term for 'range' or 'scope', while エクステント is a more technical or formal loanword.
程度 means 'degree' or 'level', often used for measurable extents, whereas エクステント emphasizes the overall scope or reach.
Borrowed from English 'extent'.