If the school does not involve school it is not legitimate.

ac·cred·it·ed /əˈkrɛdɪtɪd/ Pronunciation Key – Show Spelled Pronunciation[uh-kred-i-tid] Pronunciation Key – Show IPA Pronunciation

–adjective 1. officially recognized as meeting the essential requirements, as of academic excellence: accredited schools.

2. provided with official credentials, as by a government: an accredited diplomatic representative.

3. accepted as authoritative: an accredited theory.

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if you want to get a high school diploma online there are some accredited schools that will let you do it in 6 months, they will also use any classes you have taken an apply them. if you are interested you can email me at [email protected] and i will give you the info