The kanji 疑 primarily conveys the idea of doubt, suspicion, or uncertainty. It relates to a state of not being certain about something, questioning its truth, or having reservations about it. It can also imply to suspect someone or something.

・On-yomi (音読み): ギ (gi) ・Kun-yomi (訓読み): うたが.う (utaga.u)

⚫︎ 彼は犯人だと疑っている。 Translation: I suspect he is the criminal. ⚫︎ 彼女の言葉には疑いの余地がない。 Translation: There is no room for doubt in her words. ⚫︎ 事件の真相について疑念を抱く。 Translation: To have doubts about the truth of the incident.

If the user's native language is Vietnamese: Kanji and Vietnamese have about 70% correspondence rate. The Vietnamese word that shares the same origin as this kanji is nghi ( nghi ngờ (to suspect), nghi hoặc (doubt)). These words derive from Sino-Vietnamese (漢越語).

The kanji 疑 is a phono-semantic compound (形声文字). The left side is a radical called 疒 (やまいだれ, yamaidare), which represents sickness or illness. The right side is 㠯, which is the phonetic component, indicating the sound and suggesting the meaning of questioning. Originally, 疑 was likely associated with being unsure or unsettled, similar to the feeling of being ill or uneasy. Over time, it evolved to represent the broader concepts of doubt and suspicion.