ay¹/ie/ interj and noun

ay²/ay/ adv

• cost
• costa
• cost a bomb
• cost accounting
• costae
• cost an arm and a leg
• co-star
• Costa Rican
• cost-benefit
• cost-effective
• costermonger
• costive
• costly
• costmary
• cost of living
• cost-of-living index
• cost-plus
• cost price
• cost-push
• costume
• costume drama
• costume jewellery
• costumier
• cosy
• cosy up