"Saveus" is a combination of two words: "save" and "us". In this context, it is a plea or a cry for help directed towards a superhero. It expresses a desperate need for someone with superhuman abilities or extraordinary powers to come to the rescue and protect or save a group of people or society from a dangerous or threatening situation.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: "Please be our hero!". Explanations are generated by AI and may be inaccurate.