とは[限「かぎ」]らない => Its not really A N2
Information, Report
~にかぎったことではない => not limited to only ~ N1
Correction
…すぎ ... => too much N4
Emphasis on degree
かぎり/ないかぎり => While A is the case/still true N2
Conditional, While
すぎる => too much N4
どころのさわぎではない => This is not the time to do things... N2
Base, base
~ ないともかぎらない => ~ It's unlikely... won't N1
Speculation
に過ぎない => no more than; just; merely; only ~ N2
~といっても言い過ぎではない => it is no exaggeration to say; it is not too much to say N1
Position, perspective
…ても…すぎることはない => no matter if you do something too much, it will never be too much N2
Evaluate
にすぎない => Only A; No more than A N2
(Not)only, (Not) even
かぎりだ => Very A N1
Degree/ Level/Amount