по

Translation

• 1.

  along

  Also: down

  Example: Я иду́ по у́лице. - I'm walking down the street.

  Info: по + Location of walking, going in dative case

• 2.

  on the subject of

  Example: Учебник по фи́зике. - Physics book.

  Info: по + object in dative case

• 3.

  by the means of

  Example: Говори́ть по телефо́ну - to talk on the phone

  Info: по + object in dative case

• 4.

  hit or punch somewhere

  Example: Он уда́рил меня́ по лицу́. - He punched me in the face.

  Info: по + hit region in dative case

• 5.

  after a certain age

  Example: Дееспосо́бность возника́ет у лица́ по достиже́нии 18 лет. - A person acquires legal capacity at the age of 18.