What does 延長 mean?
延長 is a Japanese noun meaning “extension, prolongation” in English. It can also be translated as “(total) length, extension (e.g. of one's work), extension (of a line segment)” depending on context. It is written as 延長 in kanji, えんちょう in hiragana, and enchou in romaji. This word is part of JLPT N2 vocabulary.
Example sentence
宿泊をもう一晩延長できますか。
Can I extend my stay one more night?