a rough calculation or guess (based on incomplete information) of a value, quantity, or extent of something
There he had seen everything to exalt in his estimation the woman he had lost; and there begun to deplore the pride, the folly, the madness of resentment, which had kept him from trying to regain her when thrown in his way.
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What is the estimate to repair the car?
I hope her estimate of less than $100 is good because I only have $100.
From situation, Mrs Clay was, in Lady Russell's estimate, a very unequal, and in her character she believed a very dangerous companion; and a removal that would leave Mrs Clay behind, and bring a choice of more suitable intimates within Miss Elliot's reach, was therefore an object of first-rate importance.
…it no more; returning, with all his zeal, to dwell on the circumstances more indisputably in their favour; their age, and number, and fortune; the high idea they had formed of Kellynch Hall, and extreme solicitude for the advantage of renting it; making it appear as if they ranked nothing beyond the happiness of being the tenants of Sir Walter Elliot: an extraordinary taste, certainly, could they have been supposed in the secret of Sir Walter's estimate of the dues of a tenant.
…with such tremulous feeling, the various lines which imaged a broken heart, or a mind destroyed by wretchedness, and looked so entirely as if he meant to be understood, that she ventured to hope he did not always read only poetry, and to say, that she thought it was the misfortune of poetry to be seldom safely enjoyed by those who enjoyed it completely; and that the strong feelings which alone could estimate it truly were the very feelings which ought to taste it but sparingly.
The disproportion in their fortune was nothing; it did not give her a moment's regret; but to have no family to receive and estimate him properly, nothing of respectability, of harmony, of good will to offer in return for all the worth and all the prompt welcome which met her in his brothers and sisters, was a source of as lively pain as her mind could well be sensible of under circumstances of otherwise strong felicity.