A cane or walking stick: a stick used to assist walking; can also refer to a staff or wand in ritual or fantasy contexts.
祖父は散歩のときいつも杖を使っている。
My grandfather always uses a cane when he goes for a walk.
登山用の丈夫な杖を一本買った。
I bought a sturdy hiking pole.
物語の中で魔法使いは杖を振って呪文を唱えた。
In the story, the wizard waved his staff and chanted a spell.