upscale

adjective

1. located at, moving toward, or of or for the upper end of a social or economic scale: The boutique caters to upscale young career people.
2. luxurious, costly, or elegant.

verb (used with object), up·scaled, up·scal·ing.

3. to improve the quality, value, or rating of: a five-year plan to upscale the neighborhood.

noun

4. (used with a plural verb) elegant, elite, privileged persons collectively (usually preceded by the): shops that only the upscale can afford to patronize.

adjective (ˈʌpˈskeɪl)

1. of or for the upper end of an economic or social scale; up-market

verb (ˈʌpˌskeɪl)

2. (tr) to increase the scale of

adj.1966, “at the higher end of a scale, superior,” from up + noun derivative of scale (n.3).