There are 2 definitions of OB in English:

OB

Line breaks: OB

abbreviation

British
  • Outside broadcast.

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Word of the day milord
Pronunciation: mɪˈlɔːd
noun
used to address an English nobleman

There are 2 definitions of OB in English:

Ob

Line breaks: Ob
  • The principal river of the western Siberian lowlands and one of the largest rivers in Russia. Rising in the Altai Mountains, it flows generally north and west for 5,410 km (3,481 miles) before entering the Gulf of Ob (or Ob Bay), an inlet of the Kara Sea, a part of the Arctic Ocean.

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