4 entries found for
rail.
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Main Entry:
1rail 
Pronunciation:
r
(
)l
Function:
noun
Etymology: Middle English
raile "bar, rail," from early French
raille, reille "bar, ruler," from Latin
regula "straightedge, ruler," from
regere "to lead straight, govern, rule" --related to
REGENT,
REGULATE,
RULE
1 a : a bar extending from one support to another and serving as a guard or barrier
b : RAILING 1
2 a : a bar of steel forming a track for wheeled vehicles
b : RAILROAD
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rail."