additionBlueberries make a delicious addition to your smoothies.
add-onYou can install add-ons such as toolbars and ad blockers to this browser.
accessoryYou can buy various accessories for your phone.
attachmentThe tool comes with useful cutting attachments.
extraA sunroof is an optional extra on this model of the car.
supplementThey plan on publishing a supplement to the second edition of the dictionary.