I don't discuss my member
Join Date: Aug 2007
Location: Chesapeake Bay
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Boom vang and kicker.
foreguy and downhaul.
Both of these do almost the same thing, a vang and kicker, but the construction is different.
A foreguy and downhaul do something very similar and are called the same thing on a lot of boats. However, they are rigged differently and perform slightly different tasks.
Twings and tweakers are often interchanged.
I'm sure there's more, but the language is very confusing when you first start out.