同一
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Base noun form. Used to indicate that two or more things are exactly the same or identical. Often appears in compound words or formal expressions.
Theme
At a company meeting, User and their colleague Mr. Tanaka are discussing project consistency and identity.
同一
どういつ
identity / sameness
Advanced ExpansionAbstract Concepts
Memory Hook
Imagine two identical twins standing together. They are the 'same' or have the same identity. Think: 'Toe-ni' sounds like 'two-knee' — two knees are the same on your legs, representing sameness or identity.
Cultural Note
In Japanese, 『同一』 (dōitsu) is often used in formal contexts like legal documents, academic papers, or business to denote exact sameness or identity, such as in phrases like 『同一人物』 (dōitsu jinbutsu, 'the same person') or 『同一性』 (dōitsusei, 'identity').
Forms
Base: 同一Base noun form. Used to indicate that two or more things are exactly the same or identical. Often appears in compound words or formal expressions.