full·back 
(flbăk′)
(flbăk′)n. Abbr. FB
1. Football An offensive backfield player whose position is behind the quarterback and halfbacks and who primarily performs offensive blocking and line plunges.
2. Sports A primarily defensive backfield player in field hockey, soccer, or Rugby whose position is near the defensive goal or goal line.
- illicit
- illicitly
- illicitness
- Illimani
- illimitability
- illimitable
- illimitableness
- illimitably
- Illinois
- Illinois
- Illinoisan
- Illinois River
- Illinois Waterway
- illiquid
- illiquidity
- illiteracy
- illiterate
- illiterately
- illiterateness
- ill-mannered
- ill-manneredly
- ill nature
- ill-natured
- ill-naturedly
- ill-naturedness