Questions about example sentences with, and the definition and usage of "Omission"

A:
Something that has been left out

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A: An omission is deliberate. An oversight is accidental. (I'm sorry. I didn't intend to leave that part of the form blank. It was an oversight, not a deliberate ommission.)

A: "omission" is usually on purpose.
"oversight" is usually on accident. Not on purpose.

A: Omission is usually some information that is left out or something that is not done. It most often refers to an intentional action.

"He failed to give important details in his court testimony. That was quite an intentional omission."

Missing, as it compares to omission, usually refers to something that has been lost, but is has other meanings unrelated to this comparison, such as a person missing (longing for) another person. But for the sake of omission vs missing, missing means:

"He can't find his red shirt. It's been missing (lost/unable to be found) for three days."

A: @mily: 一つ目は省略。二つ目はDaigoが使いそうな略した日本語(例えばTKGとか 🐥🍚🍴)

A: omission

A: × I’d like to apologize for the omission of club supporting expenses which cause big troubles to school.
✓ I’d like to apologize for the omission of some club expenses in our accounting which had serious ramifications for the school.

× I feel greatly responsible for what happened as a director of Administration.
✓ As Director of Administration, I feel responsible for what happened.

Because this is describing an error made in a professional capacity, it is appropriate to use more formal language.

A: Although, it is possible in some ways with certain time-adverbs (soon, later etc.).
"Do you want to go for a swim?"
"I'd like to, later" (This can almost be seen as two sentences though ("I'd like to. Later.").

Or you could answer, "Tomorrow I'd like to."

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A: I selected wrong one. I believe that's fine. i would maybe use mistakes or errors instead.

A: Yes, it pretty much means the sentence you provided :)

I think it fits definition A in the link you sent.

Here are some other similar ways of phrasing "Maybe omission, but that's it."

"If anything, it might be omission, but that's all I can think of."

"It might be omission. That's the only option that might be correct. No other options seem correct. But, it also may not be omission. It may be nothing at all."

It might be kind of like saying this:

omissionかもしれないけど、もし本当にomissionだったら、それだけです