What does 挿す mean?
挿す is a Japanese verb meaning “to insert, to put in, to graft” in English. It is written as 挿す in kanji, さす in hiragana, and sasu in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
彼はボタンの穴に花を挿した。
He stuck a flower in his buttonhole.