Difference between Italian Sandwich and Zep

ITALIAN SANDWICH vs ZEP: NOUN

A large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States

A certain type of submarine sandwich
A large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States

(proper noun) Led Zeppelin, an English rock group most active in the 1970s and late 1960s.

Club sandwich, Poor boy, Hero sandwich, Cuban sandwich, Bomber, Submarine, Wedge, Hero, Torpedo, Hoagy, Grinder, Sub, Submarine sandwich, Zep, Hoagie

Pta, Italian sandwich, Cuban sandwich, Hero sandwich, Poor boy, Bomber, Submarine, Hero, Wedge, Torpedo, Sub, Grinder, Hoagy, Submarine sandwich, Hoagie

Cut of pork, Canadian bacon, Open sandwich, Club sandwich, Poor boy, Hero sandwich, Cuban sandwich, Bomber, Submarine, Wedge, Hero, Torpedo, Grinder, Sub, Submarine sandwich

Ossobuco, Bialy, Pta, Poor boy, Italian sandwich, Hero sandwich, Cuban sandwich, Bomber, Submarine, Hero, Wedge, Torpedo, Sub, Grinder, Submarine sandwich

Boat Automotive Service Car Wash Zep Vehicle Care Inc.
Zep was climbing out of the shell, unlimbering himself.
Get yourself a copy of Zep IV on vinyl.
Tapes on any Zep related topic past and present.
But somehow Zep seems in tune with her.
Normally Zep liked it when he was clipping.
See you in a little while, kay, Zep?
Zep gave ELDO their formula, just for kicks.
Zep and Del made enough for food, for beer and pakalolo, and for maintaining the very pickup truck that Zep had set on fire.
Pursuant to the acquisition of Zep Solar, the Company assumed the Zep Solar, Inc.