Èrọ tí a fi túmọ̀ ọ̀rọ̀ kúrò ní èdè kan sí èkejì ni ...?

This question tests knowledge of the Yoruba word for a device or tool that converts words from one language into another.

Yoruba forms agent nouns, words naming the doer or performer of an action, by combining the prefix "a-" with a verb, so that a verb meaning to interpret or translate becomes a noun meaning "that which translates." This is the correct term for a translating device or dictionary, distinguishing it from the word for translation as an activity or result, from a general term for a language's vocabulary, and from an unrelated word that does not name a device at all.

Recognising this "a-" prefix pattern is useful more broadly in Yoruba, since the same construction produces many everyday tool and agent names, such as the words for a broom, a cutter, or a teacher, each built from a verb describing what that person or tool does.

When a question asks for the Yoruba name of a tool or device that performs an action, look for a word built with the "a-" prefix attached to the relevant verb, since that pattern reliably signals an agent or instrument noun.