accessory

IPA: æksˈɛsɝi

Something that belongs to part of another main thing; something additional and subordinate, an attachment.
(fashion) An article that completes one's basic outfit, such as a scarf or gloves.
(law) A person who is not present at a crime, but contributes to it as an assistant or instigator.
(art) Something in a work of art without being indispensably necessary, for example solely ornamental parts.

Having a secondary, supplementary or subordinate function by accompanying as a subordinate; aiding in a secondary way; being additional; contributing or being contributory.
(law) Assisting a crime without actually participating in committing the crime itself; being connected as an incident or subordinate to a principal.
Present in a minor amount, and not essential.

Examples of "accessory" in Sentences

Remember, the best accessory is a pet identification tag!
A useful car accessory is a USB charger, which plugs into the socket formerly known as the cigarette lighter.
Just as with "blood libel," Sarah Palin can rightly claim that other prominent people have used the term accessory the same way that she did.
I cannot walk past a jewellery store without looking at the earrings on display and I won't even discuss beaded earrings in accessory stores.
In 2010, Ms. Skovgaard won accessory designer of the year at the Elle Style Awards, and most recently, she took the title of accessory designer of the year at the 2011 Dansk Fashion Awards, one of Denmark's most prestigious industry prizes.