hell·uv·a 
(hĕlə-və) Slang
(hĕlə-və) Slang adv.
Used as an intensive: He's a helluva great guy.
adj.
Excellent; exceptional: That was a helluva vacation!
[Alteration of hell of a.]
- Newton's law of gravitation
- Newton's laws of motion
- Newton's second law
- Newton's third law
- new town
- New Urbanism
- new wave
- New World
- New Year
- New Year's Day
- New Year's Eve
- New York
- New York aster
- New York Bay
- New Yorker
- New York minute
- New York School
- New Zealand
- New Zealander
- NEX
- Nexium
- next
- next door
- next-door
- next friend