1. alteration(n = noun.event) change, modification - an event that occurs when something passes from one state or phase to another; "the change was intended to increase sales"; "the neighborhood had undergone few modifications since his last visit years ago"; "this storm is certainly a change for the worse"
Derived form verb alter1
2. alteration(n = noun.act) adjustment, modification - the act of making something different (as e.g. the size of a garment);
Derived form verb alter1, verb alter3
3. alteration(n = noun.act) revision - the act of revising or altering (involving reconsideration and modification); "it would require a drastic revision of his opinion"
1. The act of altering or making different. [1913 Webster]
2. The state of being altered; a change made in the form or nature of a thing; changed condition. [1913 Webster]
N difference, variance, variation, variety, diversity, dissimilarity, disagreement, disparity, distinction, contradistinction, alteration, modification, permutation, moods and tenses, nice distinction, fine distinction, delicate distinction, subtle distinction, shade of difference, nuance, discrimination, differentia, different thing, something else, apple off another tree, another pair of shoes, horse of a different color, this that or the other, differing, different, diverse, heterogeneous, multifarious, polyglot, distinguishable, dissimilar, varied, modified, diversified, various, divers, all manner of, all kinds of, variform, daedal, other, another, not the same, unequal, unmatched, widely apart, poles apart, distinctive, characteristic, discriminative, distinguishing, incommensurable, incommensurate, differently, il y a fagots et fagots.
N variation, alteration, modification, moods and tenses, discrepance, discrepancy, divergency, deviation, aberration, innovation, varied, modified, diversified.
N change, alteration, mutation, permutation, variation, modification, modulation, inflexion, mood, qualification, innovation, metastasis, deviation, turn, evolution, revolution, diversion, break, transformation, transfiguration, metamorphosis, transmutation, deoxidization, transubstantiation, mutagenesis transanimation, transmigration, metempsychosis, avatar, alterative, conversion, revolution &c (sudden or radical change), inversion, displacement, transference, changeableness, tergiversation, changed, newfangled, changeable, transitional, modifiable, alterative, mutatis mutandis, Int, quantum mutatus!, a change came o'er the spirit of my dream, nous avons change tout cela, tempora mutantur nos et mutamur in illis, non sum qualis eram, casaque tourner, corpora lente augescent cito extinguuntur, in statu quo ante bellum, still ending and beginning still, vox audita perit littera scripta manet.