As a Noun: 1. The condition of something being different to what it was before; the aspect of something that is different from a previous condition. English = change. 2. [With attenuation] a small change in something which improves it. English = alteration, modification. 3. [With augmentation] a complete change in something. English = transformation. 4. The process of living or dynamic things changing over time in response to the environment that make it better suited to it. English = adaptations, evolution. As a Verb or Adjective: 1. To become or make something different. English = change. 2. [With attenuation] to change something slightly in order to improve it. English = alter, modify. 3. [With augmentation] to completely change something. English = transform. 4. Of living and other dynamic things, to change over time in response to the environment in order to better suit it. English = adapt, evolve.