estimate

/ˈɛstəmət/
verb
  1. To roughly calculate or judge the value, number, quantity, or extent of something.
    • Scientists estimate the age of the fossil to be over 10,000 years old.
    • The contractor estimated that the renovation would take three months.
    • Can you estimate how many people will attend the concert?
Antonyms
noun
  1. A rough calculation or judgment of the value, number, quantity, or extent of something.
    • The mechanic gave me an estimate of $500 for the car repairs.
    • According to my estimate, we have enough food for twenty people.
    • The initial estimate for the project was too low, so they had to ask for more funding.