cost
n. C / U A1 Beginner Oxford US //ˈkɑst// UK //kˈɒst// cost
n. the amount of money you must pay to buy or do something.
n. the amount of money, time, or effort required to achieve or purchase something.
The cost of the ticket is ten dollars.
We need to calculate the total cost of the materials before we start the renovation project.
While the financial cost of the expansion was manageable, the human cost in terms of employee burnout proved far more significant than the board had anticipated.
Usage
Uncountable when referring to the general price of things; countable when referring to specific prices or expenses.
Pitfall
The cost of the car is very expensive.The cost of the car is very high.Things are expensive, but costs are high or low.