approximation
🇺🇸
/əˌprɑːksɪˈmeɪʃn/
🇬🇧
/əˌprɒksɪˈmeɪʃn/
A close guess of a number or amount that is not exact
Since we don't know the exact number, we use an approximation for our calculations.
正確な数字がわからないので、計算には近似値を使います。
Something that is very similar to another thing but not exactly the same
This model is a good approximation of the real building design.
このモデルは実際の建物設計の良い近似です。