Possible Definitions:
1. Estimation (v. t.) The act of estimating.
2. Estimation (v. t.) An opinion or judgment of the worth, extent, or quantity of anything, formed without using precise data; valuation; as, estimations of distance, magnitude, amount, or moral qualities.
3. Estimation (v. t.) Favorable opinion; esteem; regard; honor.
4. Estimation (v. t.) Supposition; conjecture.