Strong's Concordance

Original word: אָמְנָה
Transliteration: omnah
Definition (short): care
Definition (full): bringing up, nourishment

NAS Exhaustive Concordance

Word Origin: from aman
Definition: bringing up, nourishment
NASB Translation: care (1).
NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries.
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Strong's Exhaustive Concordance

Feminine of 'omen (in the specific sense of training); tutelage -- brought up.

see HEBREW 'omen

KJV: Esther had not yet shewed her kindred nor her people; as Mordecai had charged her: for Esther did the commandment of Mordecai, like as when she was brought up with him.
NASB: Esther had not yet made known her kindred or her people, even as Mordecai had commanded her; for Esther did what Mordecai told her as she had done when under his care.