Education is probably commonly understood to be formal education as in a formal setting. However there are other opinions on the matter.
As a starting point, consider the term Education in wikipedia.
>> access the definition
Extract: Education is the process of facilitating learning, or the acquisition of knowledge, skills, values, beliefs, and habits.
Educational methods include storytelling, discussion, teaching, training, and directed research.
Education frequently takes place under the guidance of educators, but learners may also educate themselves.
Education can take place in formal or informal settings and any experience that has a formative effect on the way one thinks, feels,
or acts may be considered educational. The methodology of teaching is called pedagogy.
This definition covers both formal and informal education. This means that education as a learning experience can happen in any setting