thingy

While "thingy" is a common part of spoken English, it is strictly informal. You will find it in most modern dictionaries, but it is treated as a colloquial word rather than a formal term. It works as a substitute noun for an object whose name is unknown, forgotten, or simply unimportant in the moment. It's the linguistic equivalent of shrugging your shoulders and saying, "You know... that thing."

The beauty of "thingy" lies in its flexibility. A child might point to a toy and ask, "What's this thingy?" A person working on a car might say, "Hand me that thingy next to the wrench." It is most often used when describing physical gadgets, tools, or parts, but it can apply to almost anything: "I put my keys down somewhere... near that thingy on the counter."

However, be mindful of your audience! While perfectly acceptable in casual conversation with friends and family, using "thingy" in a formal setting (like a business presentation or a technical report) might come across as imprecise or unprofessional. It's best reserved for those moments when the exact name just isn't coming to you, and clear communication is more important than technical accuracy. Think of it as a friendly, informal way to acknowledge that sometimes, we simply can't remember what things are called!