analysis
appraisal
appraisement
approximation
assessment
business
calculation
calibration
computation
conclusion
consideration
considered opinion
determination
educated guess
esteem
estimate
estimating
estimation
evaluate
evaluation
gaging
guess
guesstimate
impression
informed
judgment
measure
measurement
mensuration
opinion
quantification
quantifying
rating
reckoning
research
review
rough calculation
rough guess
sizing up
stock
stocktaking
summingup
survey
valuation
weighing