: a flexible, general-purpose computer programming language that is derived from C (see c entry 1 sense 8) but that includes some features not found in C (such as capabilities for object-oriented programming) and that is used for writing large or complex programs that would be difficult to write in C

Examples of C++ in a Sentence

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Navigation was another problem the agent had to solve, with GPT-6 Astra generating a C++ helper that used AzerothCore’s navigation-mesh data, known as mmaps, to calculate routes. — Bojan Stojkovski, Interesting Engineering, 4 Oct. 2026 Meanwhile, Argon agents have been working to migrate C/C++ codebases to Rust across Google, including thousands of lines in the core re2 and libgav1 libraries and more than 800,000 lines in the Fuchsia OS Zircon kernel. — Ryan Whitwam, ArsTechnica, 30 Sep. 2026 But for those preferring an LLM-free life, user can program the unit with MicroPython and Arduino C++. — New Atlas, 25 Sep. 2026 The risk sits below the application layer in native C/C++ decoders such as libheif, often included indirectly through ImageMagick, libvips, Sharp, distro packages, or container images. — Stevie Bonifield, The Verge, 18 Sep. 2026 See All Example Sentences for C++

Word History

First Known Use

1985, in the meaning defined above

Time Traveler
The first known use of C++ was in 1985

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Cite this Entry

“C++.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/C%2B%2B. Accessed 6 Oct. 2026.

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