follow-up

[ fol-oh-uhp ]
/ ˈfɒl oʊˌʌp /
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noun

the act of following up.
an action or thing that serves to increase the effectiveness of a previous one, as a second or subsequent letter, phone call, or visit.
Also called follow. Journalism.
  1. a news story providing additional information on a story or article previously published.
  2. Also called sidebar, supplementary story. a minor news story used to supplement a related story of major importance.Compare feature story(def 1), human-interest story, shirttail.

adjective

designed or serving to follow up, especially to increase the effectiveness of a previous action: a follow-up interview; a follow-up offer.
of or relating to action that follows an initial treatment, course of study, etc.: follow-up care for mental patients; a follow-up survey.

Origin of follow-up

First recorded in 1920–25; noun, adj. use of verb phrase follow up
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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