Rb1
symbol
The chemical element rubidium.
RB2
abbreviation
Botswana (international vehicle registration).
Origin
From Republic of Botswana.
- language
- language area
- language arts
- language attrition
- language barrier
- language competence
- language contact
- language course
- languaged
- language death
- language disorder
- language engineer
- language engineering
- language event
- language family
- language game
- language group
- language-impaired
- language lab
- language laboratory
- languageless
- language loyalty
- language master
- language nest
- language of flowers