The kanji 専 primarily conveys the idea of "exclusive," "specialized," "dedicated," or "entirely." It implies focusing on a single area or subject, being devoted to something, or being the only one of its kind. It suggests a high degree of concentration and commitment.

・On-yomi (音読み): セン ・Kun-yomi (訓読み): None, but it's often used in compound words to denote specialization or exclusivity.

⚫︎ 専門 Translation: Specialty; Expert; Professional field. ⚫︎ 専用 Translation: Exclusive use; Dedicated; Private. ⚫︎ 専念する Translation: To devote oneself to; to concentrate on.

The kanji 専 is a pictographic character. It depicts a spinning tool used for making thread. Over time, it developed the meanings related to focusing on something. The upper part represents the tool, and the lower part might have represented thread or the action of spinning. The tool indicates "specialized." Therefore, it gives the meaning of being dedicated to something.