charge per unit

Từ điển WordNet v3.1 - WordNet Dictionary

noun

amount of a charge or payment relative to some basis
- a 10-minute phone call at that rate would cost $5
• Syn:
rate
• Hypernyms:
charge
• Hyponyms:
pay rate, rate of pay, payment rate, rate of payment, repayment rate,
installment rate, tax rate, interest rate, rate of interest, freight, freightage,
freight rate, rate of depreciation, depreciation rate, rate of exchange, exchange rate, excursion rate,
footage, linage, lineage, room rate