The kanji 惟 primarily conveys the concept of "to think," "to consider," "to ponder," or "only." It suggests a state of deep reflection, focusing the mind on a particular idea or situation. It can also imply a singular focus or emphasis, highlighting something as being "the only" or "just."

・On-yomi (音読み): い (i) ・Kun-yomi (訓読み): おも（う） (omo(u)) – to think, to feel

⚫︎惟一（いいつ, Iitsu） Translation: Only one; the sole; the unique. ⚫︎思惟（しい, Shii） Translation: Thinking; contemplation; meditation. ⚫︎惟するに（これするに, Kore suru ni） Translation: Considering that; in my opinion; it seems to me.

The kanji 惟 is a 形声文字 (keisei moji), a phono-semantic compound. It combines the radical 忄(りっしんべん, risshinben), which represents "heart" or "mind," with the phonetic component 隹 (shuu), which gives a clue to the pronunciation. The 隹 represents a bird, but it also carries a sound association. This structure visually represents the act of thinking and pondering within the heart. The presence of the "heart" radical directly points to the internal, mental process associated with the kanji's meaning. The character evolved over time, solidifying its association with thought and contemplation.