It’s taken 50 long years, but the Dictionary of American Regional English is finally hitting the end of the alphabet. Set to be released in March by Harvard University Press, the fifth volume of the dictionary, covering words from “slab” to “zydeco,” gives a whole new meaning to the phrase, “You say tomato, I say tomahto.”

The project began in 1962 at the University of Wisconsin-Madison, when Fred Cassidy became chief editor of a dictionary of American dialects. He spent two years working on a 1,600-question survey covering all aspects of daily life, and in 1965, sent out 80 fieldworkers in “word wagons” to 1,002 communities across the United States, according to the Guardian.

Those fieldworkers interviewed 2,777 people over six years, and that information has been mapped by editors over the last 40. From that, they’ve created a 60,000-entry dictionary that highlights wacky regional words we never knew existed. If that doesn’t say persistence, I don’t know what does.

Some of the team’s favorite terms from the fifth volume?

Upscuddle — Southern Appalachian term for a noisy quarrel

Strubbly — Pennsylvania German term for untidy

Swivet — A term for a state of anxiety from the South

Tolo — The Washington state word for a dance to which women invite men

Upscuddle — Southern Appalachian term for a noisy quarrel

Whoopensocker — Something extraordinary of its kind, especially a large or strong drink, chiefly used in Wisconsin

Willywags — A New England term for an area with tangled underbrush

The dictionary also shows how different regions of the United States refer to the same item is various ways. Take “sandwich,” for example. In Louisiana, it’s a po’boy, but could be called a hoagie, hero, sub, grinder or torpedo anywhere else in the country. How about a desolate, remote place? Some call that “puckerbrush” others, “the boondocks.” Personally, as a Mainer, we call that East Bum…I’ll let you finish the rest of the phrase for yourself.

Personally, I find this stuff fascinating. Numerous times throughout the week, when I say soda, Lisa DeCanio will say “pop,” all because she’s from the Midwest and that’s just what they do. When I say “peton,” you all say “button,” but that’s also because I grew up with a Canadian grandmother who spoke in “Frenglish.” Tomato, tomahto. I’m just excited to get my hands on this dictionary.