Definitions from Wiktionary (ball signal)
▸ noun: (historical) A kind of mechanical signal used on early American railroads, consisting of wooden balls, painted various colors, that were hoisted up and down a pole using a rope and pulley.
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▸ noun: (historical) A kind of mechanical signal used on early American railroads, consisting of wooden balls, painted various colors, that were hoisted up and down a pole using a rope and pulley.
Similar:
lowball,
sky ball,
base ball,
highball,
time-ball,
speedball,
silver ball,
breaking ball,
wireball,
trap ball,
more...
▸ Words similar to ball signal
▸ Usage examples for ball signal
▸ Idioms related to ball signal
▸ Wikipedia articles (New!)
▸ Words that often appear near ball signal
▸ Rhymes of ball signal
▸ Invented words related to ball signal