You can remove multiple packages at once by listing each package consecutively on the command line. For example:

rpm -e aspell-en-ca-0.33.7.1-16 aspell-en-gb-0.33.7.1-16

This command removes the aspell-en-ca-0.33.7.1-16 and aspell-en-gb-0.33.7.1-16 packages.