Step 1: Understanding the Concept:
The question asks for the meaning of the Sanskrit term 'dwija'. This is a specific term used in the context of the traditional Hindu varna system.
Step 2: Detailed Explanation:
The word 'dwija' literally translates to 'twice-born' (\(dvi\) = two, \(ja\) = born).
The first birth is the physical birth.
The second 'birth' is considered a spiritual one, which occurs when a person undergoes the 'upanayana' or sacred thread ceremony. This ceremony marks the initiation into the study of the Vedas and the beginning of a formal education.
In the traditional varna system, only the members of the top three varnas—Brahmins, Kshatriyas, and Vaishyas—were entitled to this ceremony and were thus referred to as 'dwija'.
Step 3: Final Answer:
The word 'dwija' directly implies the concept of being 'twice-born'.