The kanji 唯 primarily conveys the meanings of "only," "solely," "merely," or "alone." It suggests exclusivity or a limited quantity or state. It emphasizes that something is the single or primary element in a situation. It can also imply a sense of singleness or isolation.

・On-yomi (音読み): イ (i) ・Kun-yomi (訓読み): ただ (tada)

⚫︎ 唯（ただ）一つ Translation: Only one; the only one. ⚫︎ 唯（ただ）今 Translation: Just now; at this moment. ⚫︎ 唯（ただ）の友達 Translation: Just a friend; only a friend.

The kanji 唯 is a phono-semantic compound (形声文字, keisei moji). The left side is a component from 口 (kuchi), meaning "mouth" or "speech," representing the sound of speaking. The right side is 隹 (sui), an old form of the character for "bird". The original meaning of 唯was likely related to words that indicated sound or declaration. Over time, it developed the meaning of "only" because the focus of speaking often narrows down to one particular thing at a time.