upscale

/ˈʌpˌskeɪl/
adjective
  1. Aimed at or characteristic of wealthy or sophisticated people; high-end.
    • She lives in an upscale neighborhood with large homes.
    • The boutique sells upscale clothing at premium prices.
    • They dined at an upscale restaurant with white tablecloths.
verb
  1. To increase the quality, value, or size of something.
    • The company plans to upscale its product line to attract luxury buyers.
    • They upscaled the old hotel into a five-star resort.
    • We need to upscale our marketing efforts to reach a global audience.