Dictionaries offer SEVERAL terms synonymous with or very close to "lightning rod": (1) lightning rod (2) lightning rig (3) lightning arrester (4) arrester
Q#1: Which of the terms do you think is "most common"/"most appropriate" in everyday English? Q#2: Let me ask you a very naive question :-) Can the word "arrester" be used for "lightning arrester" (in everyday English at least? ...assuming it is 100% clear from context what kind of "arrester" is meant?)
Counterexample :-)
Native speakers would by no means shorten"lightning bug" to just "bug", would they? :-)
mus-te
Top answer
I'm from an area that doesn't have frequent electrical storms, so I've only heard of a "lightning rod". I don't think most people would understand "arrester". Lightning bugs are more commonly called fireflies.
— Vorpar
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