What does que mean without an accent?

The Spanish Word "que" (no accent) may mean either "what" or "that," depending on context.

When "que" is used as part of a noun clause, as in "Eso es lo que voy a hacer" ("That is what I'm going to do") it means "what." It is important to remember that this is not the same as the "what" we use at the beginning of questions like "What are you doing?" That would be with "qué": "¿Qué haces?"

When "que" is used in other cases, such as to start a relative clause, it should usually be translated "that": "Es importante que yo tenga la información." ("It is important thatI have the information.") Again, do not confuse this Word with the demonstrative "that," as in "That bike is mine," which should be translated with a Spanish demonstrative: "Esa bicicleta es mía." (Remember that Spanish demonstratives not only have to match the noun they modify or replace in number and "nearness," they also must match it in gender.)

Es eso de que hablaba. = It is that of which I was speaking.