Why I'm asking
@Xanne asks "Does this really have to do with the English language?" Yes. I seek an English language verb. If you, dear reader, find it confusing that the following mentions another language, please imagine this other language is Martian and I'm just trying to describe in English a thing that happens on Mars, but is known to also occur on Earth.
There is a particular non-English language (actually a computer programming language), where one can write the instructions:
Basket-One = list loaf, cabbage, pineapple ; Basket-Two = list Basket-One ; Basket-Three = item Basket-One ;
The result of writing (and "computing") this that:
Basket-Onecontains three items;
Basket-Threecontains one item, the item
According to this programming language's documentation explaining this feature,
Basket-Three contains just one item because the term
item Basket-One ('item' in this context is unambiguously a technical term) has the effect of "itemizing"
This usage of "itemizing" occurs in what I consider an English prose context (tutorial documentation describing the programming language feature). But it seems like it has the exact opposite meaning to the English usage I'm familiar with. It's not clear if "itemizing" in this context is being used as a technical term or a regular English term, but either way, the goal of this question is to find a replacement English language word that doesn't have the weird characteristic of potentially/actually meaning the exact opposite of the technical meaning.
What I've found
Consider the two dictionary.com definitions of "itemize":
1. list the individual units or parts of 2. list as an item or separate part
I'm thinking that, assuming the verb's object is given in a singular form:
Definition #1 is about immediately individually listing the items within the item that's the object of the verb.
Definition #2 is about immediately listing only one item, the singular item that's the object off the verb.
1. What's the best word for denoting "treat as a single item" in the specific context I describe?
To help clarify what I'm asking, I'll present some more questions. (If someone has time, I'd appreciate answers to some/all of these more detailed questions, but they are subsidiary to my formal question.)
Do most native English speakers recognize two (or more) meanings for "itemize"? Is one meaning dominant and the other(s) rare? What about non-native speakers?
Do you think I'm right about the meaning of the second dictionary.com definition? If not, what is the meaning of the second definition?
Are there yet more definitions of "itemize" beyond the two that dictionary.com lists?
Am I right that the meaning of dictionary.com's second definition emerged from usage of "itemize" in instructions on US (or UK?) tax forms?
Does the second definition always imply that the first definition also applies to the composite object, just elsewhere than the immediate listing context?
Non-exhaustive candidate list
Assuming that English definitions of "itemize" contradict the usage I've covered in Why I'm asking, what do you think that better single word might best be:
singlify (a neologism I just made up)
"To emphasize the need to treat a potentially composite thing as a single item, when a common thing would be to treat that composite thing as the list of constituent items that comprise it, ________ it".
Thank you in advance for any and all answers or comments. :)