Advance
Check in
Check in verb - Announce one's arrival, e.g. at hotels or airports.
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Synonyms for Check in
Both terms in one sentence
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In the Callahan's Crosstime Saloon story "The Guy With the Eyes", Callahan saves the world by slipping an alien advance scout a Mickey Finn so he misses his check in with his alien overlords.
Source: Slipping a Mickey
Cite this Source
Check in and Advance. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/advance/check_in
Advance & Check in. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/advance/check_in>.
Check in or Advance. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/advance/check_in.
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