line·back·er 
(līnbăk′ər)
(līnbăk′ər)n. Abbr. LB
Football
Football
Any of the defensive players forming a second line of defense behind the players on the line of scrimmage.
lineback′ing n.
- interject
- interjection
- interjectional
- interjectionally
- interjector
- interjectory
- interlace
- interlacement
- Interlaken
- interlaminate
- interlamination
- interlanguage
- interlard
- interleaf
- interleague
- interleave
- interleukin
- interleukin-1
- interleukin-2
- interleukin-3
- interlibrary
- interline
- interline
- interlinear
- interlineation