Estimate:

Meaning:

1. Approximate calculation.
   Example:
   The estimate of his education will be 10 Lakhs for 5 years.
2. Judgement:
   My estimate of him is wrong.

Forms:

Past tence-Estimated.
Past participle-Estimated.

Related words:

1. Calculate.
2. Approximate.
3. Guess.
4. Judge.