挿(さ)すto insert, to put in, to plant (a cutting), to strike, to arrange (flowers), to wear (a sword) in one's belt, to shut, to close, to lock, to fasten

花瓶(かびん)にチューリップを挿(さ)す。

She inserts tulips into the vase.

母(はは)はいつも髪(かみ)にかんざしを挿(さ)しています。

My mother always puts a hairpin in her hair.

武士(ぶし)はいつも腰(こし)に刀(かたな)を挿(さ)していたそうだ。

It seems that the samurai always wore a sword in his belt.

世(よ)の中(なか)が物騒(ぶっそう)なのでかんぬきを挿(さ)して防犯(ぼうはん)するよりほかない。

The world is so dangerous that we have no choice but to put in bolts to prevent crime.

夫(おっと)からプレゼントしてもらった花束(はなたば)の花(はな)を花瓶(かびん)に挿(さ)すのを息子(むすこ)に任(まか)せました。

I left it to my son to put the bouquet of flowers my husband gave me into a vase.