adj
nother
NUH-thuh
adj
1
A different one; another one (used informally, often in the phrase "a whole nother").
"That's a whole nother problem we haven't even talked about yet."
"Fixing the roof is one thing, but the plumbing is a whole nother story."
How to Use Nother
Learner’s notesIn plain EnglishAn informal way of saying "another," almost always heard in the set phrase "a whole nother."
When to use it
Very informal — fine in casual speech, but avoid it in formal writing where "another" is correct.
Common pairings
a whole nother thing
a whole nother level
a whole nother story
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Etymology
A playful English reshuffling of "an other" into "a nother" — the same kind of sound-swap that turned "a napron" into "an apron."