There are 2 definitions of Ru in English:

Ru1

Line breaks: Ru

symbol

The chemical element ruthenium.

Definition of Ru in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day internecine
Pronunciation: ˌɪntəˈniːsʌɪn
adjective
destructive to both sides in a conflict

There are 2 definitions of Ru in English:

RU2

Line breaks: RU

abbreviation

1 informal Are you? where RU?
1.1Burundi (international vehicle registration).
[from Ruanda-Urundi (now Rwanda and Burundi)]
1.2Rugby union.