Open up
Open up verb - Cause to open or to become open.
Solve
Solve verb - To find an answer for through reasoning.
Both terms in one sentence
- In The World Ends with You, on the 4th day of the third week, you are boxed off by invisible walls and to open up these walls, you need to open up special boxes, which won't open unless you solve puzzles involving defeating specific Noise symbols.
Source: Only Smart People May Pass -
Wide Open Sandbox: The game has elements of this, as Dropsy has the ability to explore pretty much the entire map and solve most puzzles in any order the player wish right from the beginning of the game, though there are a few puzzles and areas that first open up as the plot progresses.
Source: Video Game / Dropsy
Cite this Source
Solve and Open up. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/open_up/solve
Open up & Solve. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/open_up/solve>.
Solve or Open up. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/open_up/solve.
Google Ngram Viewer shows how "open up" and "solve" have occurred on timeline