change of heart; change of mind; change in mental state
breaking ball (pitch); curve ball; screwball
major change; major transformation
phase change; state change; transformation
change over the years; aging; ageing; secular change
variation; variant pattern
inflection of words (e.g. declension of nouns and conjugation of verbs)
inflection; conjugation; declension
case declension; case inflection
variation; amount of change
diurnal variation (temperature, etc.); daily variation; diel cycle
sea level change; eustatic change
morphofunctional modifications
modulation symbol (flat, sharp, etc.)
non-return-to-zero (change) recording; NRZ(C)