1. Of dark grey
   - black-grey [Brit, Cdn], black-gray [US], blackish-grey [Brit, Cdn]

See also: achromatic, neutral

• cost accounting
• cost analysis
• cost cutting
• cost increase
• cost ledger
• cost of capital
• cost of living
• cost overrun
• cost-benefit analysis
• cost-effective
• cost-efficient
• cost-of-living allowance
• cost-of-living benefit
• cost-of-living index
• cost-plus
• cost-plus contract
• cost-pull inflation
• costa
• Costa Rica
• Costa Rican
• xerographic copier
• xerographic printer
• xerography
• xeroma
• xerophagy