てんかい転回tenkai
1.

The act of changing direction completely or significantly, as in altering the course of a ship.

2.

The motion of rotating or spinning around an axis, often used in contexts like gymnastics or mechanics.

3.

A musical concept involving the rearrangement of pitches or chords, where specific tones are shifted to create variations in harmony or melody.

4.

A physical movement in which a person or object rotates or turns around a point, shifting their orientation dramatically.

コペルニクスkoperunikusuてきてんかい的転回tekitenkai
1.

A fundamental shift in perspective that challenges and radically alters established views or theories, analogous to the way Copernicus' heliocentric model transformed astronomy by overturning the geocentric paradigm.

2.

A dramatic reversal in thinking or understanding, often involving a complete turnaround from previous beliefs or practices, marking a significant change in how something is perceived or conceptualized.

3.

The transition from one foundational theory to another, particularly in philosophy or science, where the emphasis shifts from an external reality to the role of the observer or subject in shaping understanding.