What does 塞ぐ mean?
塞ぐ is a Japanese verb meaning “to stuff, to close up, to block (up)” in English. It can also be translated as “to stand in the way, to occupy, to perform one's role” depending on context. It is written as 塞ぐ in kanji, ふさぐ in hiragana, and fusagu in romaji. This word is part of JLPT N2 vocabulary.
Example sentence
彼女はなぜかふさいでいる。
She looks blue for some reason.