What is the meaning of Bokken?

A wooden katana, used as a training sword.

to buck, said of a quadruped, e.g. a horse: to leap upward while arching its back

to react to opposition or adversity grumpily and capriciously, like a crossed spoiled child

to tell off, to scold, to rebuke

alternative form of bukken

plural of bok

Rōmaji transcription of ぼっけん

Source: wiktionary.org