Keep up
Keep up verb - To continue to operate or to meet one's needs.
Both terms in one sentence
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If a mermaid tells a human her secret she'll turn into sea foam (supposedly; it's never tested, and the manga implies it might be a lie spread to keep up the Masquerade).
Source: Our Mermaids Are Different - The show had two graveyard slots, showing during the very early morning before kids were up, and in the early afternoon when their target audience was still in school, and the episodes aired in order spread across the two slots - so fans had to watch twice a day to keep up.
Source: Screwed By The Network / Anime
Cite this Source
Spread and Keep up. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/keep_up/spread
Keep up & Spread. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/keep_up/spread>.
Spread or Keep up. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/keep_up/spread.
Google Ngram Viewer shows how "keep up" and "spread" have occurred on timeline