1.amplitude(AM) 2.measureofdiscontinuity 3.oscillationamplitude 4.vibrationamplitude 5.shakeamplitude 6.
variation 7.
crest 8.oscillatingamplitude 9.
oscillation 10.
fluctuation 11.
excursion 12.amplitudeofvibration 13.arcofoscillation 14.arcofvibration