noun (formal)
1 [sing.] a judgement or opinion about the value or quality of sb/sth:
Who is the best candidate in your estimation? * Since he left his wife he's certainly gone down in my estimation (= I have less respect for him). * She went up in my estimation (= I have more respect for her) when I discovered how much charity work she does.
2 [C] a judgement about the levels or quantity of sth:
Estimations of our total world sales are around 50 million.
