を

The particle を is the direct object marker in Japanese. It identifies the noun that is the target or recipient of the action described by the verb.

• Marking the direct object

  を is placed after the noun that is directly affected by the action.

  えいが映画をみます見ます。

  I watch a movie.

• With motion verbs

  When used with motion verbs like とおる通る (to pass through) or わたる渡る (to cross), を marks the location being moved through.

  はし橋をわたります渡ります。

  I cross the bridge.

Omission in Casual Speech

In casual conversation, を is sometimes omitted when the object is clear from context.