Dubia can refer to different things depending on the context. Here are some possible meanings:

• Dubia roach: Blaptica dubia, also known as the dubia cockroach, is a medium-sized species of cockroach that has become a popular feeder insect among tarantula, amphibian, and reptile enthusiasts and owners.

• Dubia (Catholicism): In Catholicism, dubia are formal requests for clarity on matters of church doctrine. A dubium is a request for clarity from a dicastery or office of the Roman Curia or even of the Holy Father himself on a matter of Church teaching, a liturgical issue, or a fine point of interpreting canon law.

• Dubia (butterfly): Dubia is a genus of skipper butterflies in the subtribe Moncina.

• Nomina dubia: In biology, nomina dubia are scientific names that are of unknown or doubtful application.

• John A. Dubia: John A. Dubia was a US Army general.

It is important to note that the term "dubia" is the plural of "dubium" and literally means "doubts" in Latin. However, broadly explained, the word means "questions that seek clarification".