Short Sword
Dagger, Tanto
noun
The short sword is the short sword. What's another word for a short sword? It's a dagger.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
その短刀、どこで買ったの？
Where did you buy that tanto?
兄は短刀を持っています。
My brother has a short sword.
短刀は武器にもなりえるので注意して所持して下さいね。
A dagger can also be a weapon, so please carry them with caution.