へんかく変革henkaku
1.

The process of fundamentally altering existing structures, systems, or methods to create something new and improved.

2.

A significant shift or transformation within society or institutions, often driven by the need for reform or advancement.

3.

An instance of comprehensive change that affects the core aspects of a particular framework or ideology, signifying a break from the past.

4.

An ongoing movement towards modernization and enhancement, indicating a continuous evolution in practices or beliefs.

Example:

大統領の演説はアメリカ国民に変革をもたらした。

だいへんかく大変革daihenkaku
1.

A significant and often sudden transformation in social, political, or economic structures that leads to a fundamental shift in established norms and practices.

2.

An overwhelming event or series of events that bring about profound changes, often resulting in upheaval or reorganization of various facets of society.

3.

A major alteration in the way systems operate, characterized by a comprehensive rethinking of strategies and approaches, frequently driven by necessity or a quest for improvement.

Example:

電話の発明は我々の生活に大変革をもたらした。