1. (Human Geography) of, relating to, situated in, or inhabiting a suburb or the suburbs. 2. (Human Geography) characteristic of or typifying a suburb or the suburbs. 3. censorious narrow or unadventurous in outlook.
Definition of supersede for English Language Learners. : to take the place of (someone or something that is old, no longer useful, etc.) : to replace (someone or something)
A superseding return is a return filed subsequent to the originally filed return, but filed within the filing period (including valid extensions). An amended return is a return filed subsequent to the originally-filed or superseding return, and after the expiration of the filing period (including valid extensions).