Gap
Gap noun - A narrow opening between hillsides or mountains that can be used for passage.
Usage example: thought they were stuck until they found a gap in the mountain range that they could hike through
Pass is a synonym for gap in nature topic. In some cases you can use "Pass" instead the word "Gap" as a noun or a verb.
Pass
Pass noun - A narrow opening between hillsides or mountains that can be used for passage.
Usage example: a mountain pass that was impassable during the winter
Gap is a synonym for pass in route topic. Sometimes you can use "Gap" instead a noun "Pass", if it concerns topics such as opening through solid.
How words are described
Both words in one sentence
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Doing it right causes the ball to pass back up through the gap created by the flippers, allowing the player to continue a game, indefinitely if mastered.
Source: Obvious Rule Patch - Effectively, these two major river systems cut Europe in two, leaving only a very small gap in between them for vampires to safely pass.
Source: Cannot Cross Running Water -
In the fourth level, there is a huge gap where you have to fight a couple of Sentinels to pass, but if you use Nightcrawler's jump kick or Wolverine's jump punch, you can dive across the gap without fighting the Sentinels.
Source: Skippable Boss
Cite this Source
Pass and Gap. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/gap/pass
Gap & Pass. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/gap/pass>.
Pass or Gap. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/gap/pass.
Google Ngram Viewer shows how "gap" and "pass" have occurred on timeline