どういつ同一douitsu
1.

A quality of being the same or without difference, often used to describe entities or characteristics that do not vary from each other in any discernible way.

2.

The state of being equal, indicating that there is no distinction or disparity between the included elements or subjects.

3.

A more formal expression for sameness, suggesting that items being compared show no significant difference whatsoever.

4.

The act of considering two or more things as one, typically implying a recognition of their indistinguishable nature.

Example:

これは私が先日なくしたのと同一の鉛筆である。

どういつじんぶつ同一人物douitsujinbutsu
1.

A term used to indicate that two or more references point to the exact same individual, emphasizing their identity as being unchanged across different contexts.

2.

A phrase that signifies a singular person being referenced multiple times, regardless of any variations in surrounding circumstances or descriptions.

3.

An expression that denotes that the individual in question is unambiguously recognized as the same across different situations or statements.

どういつし同一視douitsushi
1.

The act of perceiving or treating two or more entities as identical, often disregarding their distinct characteristics or differences.

2.

A psychological mechanism in which an individual unconsciously blends their own identity with that of an object or person, leading to a sense of satisfaction or stability through the belief that they are experiencing the same thoughts, feelings, and actions.

3.

The process of equating separate entities or concepts as equivalent, often resulting in assumptions that overlook unique attributes or distinctions.

Example:

ナショナリズムをファシズムと同一視してはいけない。

どういつにん同一人douitsunin
1.

A term used to refer to an individual who is recognized as being the same as another individual previously mentioned or identified in a context.

2.

A phrase describing a singular individual that maintains the same identity in different scenarios or discussions.

3.

A noun denoting an individual whose identity does not change across various contexts or references.

せいどういつせいしょうがい性同一性障害seidouitsuseishougai
1.

A mental health condition characterized by a persistent discomfort or incongruence with one's assigned biological sex, leading to a strong desire to transition to the opposite gender.

2.

A psychological disorder where an individual experiences distress due to a mismatch between their experienced or expressed gender and their anatomical sex, often resulting in a deep longing to live as a member of the opposite sex.

3.

A condition marked by significant emotional distress stemming from a conflict between one’s gender identity and biological sex, prompting individuals to pursue changes in gender presentation or physiology.

4.

A disorder recognized in the field of psychology that involves an intense feeling of disconnection from one’s physical sex characteristics, often accompanied by a wish to adopt the physical traits and social roles of the opposite gender.