What is ea in some recipes theay say sugar 1 ea

By my understanding it stands for each as in if the recipe is for 4 person/serving you have to use 2 pieces of tomato for each servings.
I may be completely wrong as my native language is not english, but in my language and concept of cooking it means that.

Does the "each" mean "each single recipe"?

Each, meaning a piece, a single thing. For sugar, could it mean a cube?

EA is each but I do not understand 1 ea for sugar. What cookbook did it come from?

ea. = each