The kanji 疑 generally conveys the meaning of doubt, suspicion, or to question something. It implies a lack of certainty or a feeling of mistrust. It can refer to questioning something's validity or the motives of someone. The core concept is about uncertainty or having reservations about something.

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

⚫︎ 疑問（ぎもん） Translation: Question; doubt; problem ⚫︎ 疑う（うたがう） Translation: To doubt; to suspect ⚫︎ 疑惑（ぎわく） Translation: Doubt; suspicion; distrust

This section is omitted because there is no reliable source of information about the correspondence between Japanese and Vietnamese kanji characters.

The kanji 疑 is a phono-semantic compound (形声文字). The left side is a radical (偏) called 疒, which means "sickness" or "disease." The right side is 擬, which gives the sound and also contributes to the meaning, as it once meant "to imitate". Originally, 疑 depicted a person afflicted with a mental "sickness" or a state of confusion, indicating doubt or suspicion. The "sickness" component suggests the unsettling feeling associated with doubt, while the phonetic component contributes the sound. The combination of the radical 疒 and the phonetic component 擬 suggests that the kanji expresses uncertainty and mistrust.