Sentence examples for arm at from inspiring English sources

The phrase "arm at" is not a complete part of a sentence and is not grammatically correct.
It is possible that it was meant to be a prepositional phrase, such as "at arm's length" or "at arm's reach," which would be correct and usable in written English. These phrases indicate a distance or proximity to something. For example: "He kept the bully at arm's length to avoid getting hurt." This means that the person kept a safe distance from the bully to protect themselves. Another example: "The remote control was just out of arm's reach, so I had to get up to grab it." This means that the remote was not within easy reaching distance, so the person had to physically get up to retrieve it. In both of these examples, the phrase "at arm's length/reach" is used to describe the proximity or distance to something.