Difference between Over Again and Again

OVER AGAIN vs AGAIN: ADVERB

Of motion or direction: Back: in the opposite direction; to or toward a former or the original position; to the same place or person: often strengthened with back.
Of action: Back; in return; in reply, response, answer, echo.
Of action or fact as related to time, or of time simply: Once more; in addition; another time; anew: marking repetition
Against the time that: like against, conj.
Against.
Of succession of thought: Once more; in continuation; in an additional case or instance; moreover; besides (marking transition); on the other hand (marking contrast).
Of kind or character: marking resemblance.
Of number or quantity: only in the phrases as much or as many again (= twice as much or as many), half as much again (= once and a half as much), etc.
Of action or existence: as, to do anything again; he had to make it all over again.
(idiom) (again and again) Repeatedly; frequently.

In due course, Just now, Eftsoons, Recontinue, One after another, In due time, In return, At length, And then, At one time, Time and again, Anew, Once more, Once again, Again

Time, Next, Later, Now, Continue, Just, Never, Twice, Anew, Back, Then, Once, Over again, Once more, Once again

Againward, For one thing, In due course, Just now, Eftsoons, Recontinue, One after another, In due time, In return, At length, And then, At one time, Time and again, Anew, Again

Even, But, Time, Next, Later, Now, Continue, Just, Never, Twice, Anew, Back, Then, Once, Over again

Was transferred to so many different departments and went over the same story, over and over again.
He thought things over and over again and when the first outburst of anger was over.
So I sang in the car for like a month, the same song over and over and over and over again.
It was over and over and over and over and over again, with a purpose.
Review means to look over again, think about again, or revisit.
We keep asking them to make their case, over and over and over and over again.
Over time, some patterns emerge that result in modifying the same clauses over and over again.
Why would you parse over and over and over and over again and again and again.
Let me say again, there are several checkpoints at which we could play this record over and over again.
Here we are again in a long hearing, all afternoon, questions over and over again.

Nazis, was again made public, and again made news.
Again, this rate varies considerably and again, the price will be hard to pin down in the early stages.
It would actually be advisable to take note of these commands, because will be needing them again and again.
It is a part of the Bible worthy to be read, studied and sung again and again.
It is beautiful, lively, and fun to read aloud again and again.
However, upon opening again, the force signal gives the same signature again.
This letter will come in handy and pay for itself again and again!
You can print a new housework schedule weekly or laminate to use it again and again.
Black kept coming back to the Hollinger well again and again.
Participant again becomes eligible to again participate in the Plan.