Act as
Act as verb - Function as or act like.
Run into
Run into verb - Collide violently with an obstacle.
Both terms in one sentence
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The first 10-15 levels act as tutorial and are usually easy (provided you don't run into the wrong direction), but then it picks up considerably and you'll be seeing the Spirit Healer pretty often.
Source: Difficulty Spike -
Once there, they run into a young couple, Patrick and Grace Winslow (Neil Patrick Harris and Jayma Mays), who act as their Secret Keeper until they can figure out a way to return to their own world.
Source: Film / The Smurfs -
When Hester gets set up on an unwanted date, she arranges for her friend K to "accidentally" run into them and act as a third wheel for the remainder of the date.
Source: Moment Killer
Cite this Source
Run into and Act as. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/act_as/run_into
Act as & Run into. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/act_as/run_into>.
Run into or Act as. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/act_as/run_into.
Google Ngram Viewer shows how "act as" and "run into" have occurred on timeline