A partially specified but unnamed person. / an important person

A surname.

Failure to promote a person to a higher rank. / (US, education) The holding back of a pupil instead of advancing them to the next year of studies.

Roughly or hastily laid out; intended for later refinement. / Not thorough or detailed. / Resembling a comedy sketch, of sketch quality. / (Canada, US, slang) Of questionable or doubtful quality.