upper
n.n. higher in position or rank than something else. You use this to describe the top part of an object or the more advanced level of a group.
n. situated above another part or inhabitant; higher in place, position, or status. Often used to distinguish between two related entities based on verticality or hierarchy.
The upper floors of the building have a great view.
She lives in the upper part of the city where the air is much cooler and the streets are quieter.
The treaty was signed by representatives of the upper house, signaling a significant shift in the legislative priorities of the governing coalition.
Etymology tree Proto-Indo-European *upó Proto-Germanic *ub Proto-Germanic *upp Proto-West Germanic *upp Old English upp Middle English up Proto-Indo-European *-yōs Proto-Germanic *-izô Proto-West Germanic *-iʀō Proto-Germanic *-ōzô Proto-West Germanic *-ōʀō Old English -ra Middle English -er Middle English upper English upper Inherited from Middle English upper. By surface analysis, up + -er.
Typically placed before the noun it modifies. Frequently used in fixed geographical or anatomical phrases like 'Upper East Side' or 'upper lip'.