từng

Etymology 1
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Adverb

 * 1) once (formerly; during some period in the past)

Pronoun

 * 1) every; each
 * 2) (từng + classifier word + một) one by one; one at a time; going through each one individually
 * 1) (từng + classifier word + một) one by one; one at a time; going through each one individually

Noun

 * 1) (a certain) quantity; amount

Etymology 3
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