間 => while; during; between ~ N4
瞬間 => At the very moment N3
Short period of time
間に => while; during~ something happened N4
~といえなくもない => It can be said that ~ N1
Concession
[間「あいだ」]/[間「あいだ」]に => During A, During A (before A is finished/over) N2
Time, Situation
に[加「くわ」]えて/に[加「くわ」]え => In addition to A (not only A), B as well. N2
Lists, Examples
~ といっても間違いない => although I say; although one might say ~ it doesn't matter ... N1
Explain
昼となく夜となく => day and night N1
Continuous
... おぼえはない => don't remember... N3
Position, perspective
さえ/にさえ/でさえ => Even N3
Not only, Not even
てもらえないか => could you please ~ N3
Request
~にたえる (耐える)    => bear doing ~ N1