Accredition means: Accredition is a chiefly Indian English variant of 'accreditation' - the act of officially certifying or granting credentials to an institution, person, or qualification. The shortened form appears. It is mainly Indian English and may not be understood outside that context. There is no real cause for parental concern; it is descriptive vocabulary rather than risky behaviour. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up.