FSB

1. Federalnaya Sluzhba Bezopasnosti (Russian), the Russian Federal Security Service
2. Federation of Small Businesses

• troped
• tropes
• -troph-
• troph-
• trophallactic
• trophallaxes
• trophallaxis
• trophesial
• trophesies
• trophesy
• trophi
• trophic
• trophic level
• trophic structure
• trophied
• trophies
• tropho-
• trophobioses
• trophobiosis
• trophobiotic
• trophoblast
• trophoblastic
• trophoblasts
• trophologies
• trophology