さ挿saすsu
1.
To place a long, narrow object between or into other objects, such as arranging hair ornaments like combs or hairpins in one's hair.
2.
To secure an item, such as a sword, between parts of clothing, typically for the purpose of carrying it.
3.
To propagate plants through methods like inserting cuttings into soil to grow new plants.
4.
To arrange flowers in a receptacle, such as placing cut flowers into a vase for decoration.
5.
To deposit or file documents into a prepared holder or container, such as placing a letter into an envelope.
Example:
彼はボタンの穴に花を挿した。