A spooler is a software program or device that manages data traffic. It is a utility that manages print jobs and sends the data to the printer. However, there are several synonyms for the word "spooler." For instance, a printer driver is a software that communicates with the printer and controls the printing process. A print server is a computer or a device that manages print jobs from multiple users. A buffer is a temporary memory location where data is stored before it is processed. In summary, synonyms for spooler include print driver, print server, and buffer, all of which are essential in the printing process.