Once or twice she could discern a faint blush; but in general Charlotte wisely did not hear.
Elizabeth looked at Darcy to see how cordially he assented to his cousin’s praise; but neither at that moment nor at any other could she discern any symptom of love; and from the whole of his behaviour to Miss de Bourgh she derived this comfort for Miss Bingley, that he might have been just as likely to marry her, had she been his relation.
There are no more uses of "discern" in the book.
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The second picture has more pixels, but the human eye can’t discern the difference.
She prays to discern good from evil in all of its disguises.