accessory

American  

[ak-ses-uh-ree] / ækˈsɛs ə ri /

noun

plural

accessories

1. a subordinate or supplementary part, object, or the like, used mainly for convenience, attractiveness, safety, etc., as a spotlight on an automobile or a lens cover on a camera.

2. an article or set of articles of dress, as gloves, earrings, or a scarf, that adds completeness, convenience, attractiveness, etc., to one's basic outfit.

3. Law.

   1. Also called accessory before the fact.  a person who, though not present during the commission of a felony, is guilty of having aided and abetted another, who committed the felony.

   2. Also called accessory after the fact.  a person who knowingly conceals or assists another who has committed a felony.

   Synonyms:

   accomplice

4. Anatomy. accessory nerve.

---

adjective

1. contributing to a general effect; supplementary; subsidiary.

2. Law. giving aid as an accessory.

accessory British  

/ ˌæksɛˈsɔːrɪəl, əkˈsɛsərɪ /

noun

1. a supplementary part or object, as of a car, appliance, etc

2. (often plural) a small accompanying item of dress, esp of women's dress

3. a person who incites someone to commit a crime or assists the perpetrator of a crime, either before or during its commission

---

adjective

1. supplementary; additional; subordinate

2. assisting in or having knowledge of an act, esp a crime

Related Words

See addition.

Other Word Forms

• accessorial adjective
• accessorily adverb
• accessoriness noun
• interaccessory adjective
• nonaccessory adjective

Etymology

Origin of accessory

First recorded in 1400–50; late Middle English accessorie (from Middle French ), from Medieval Latin accessōrius. See accede, -tory ¹

Explanation

Whether we're talking about a fog light for your boat or just a nice hat to go with your boating outfit, an accessory is something you add to something else to make it better. An accessory can be any piece of clothing that you wear or carry as long as it isn't part of the main outfit. You can also use the word to refer to someone who helps someone else commit a crime. So the guy who distracted the old lady while another guy grabbed her purse? He was the accessory to the theft of an accessory.

Example Sentences

Sources told The Times the ransom note felt credible because it included details about a specific damaged property and the placement of an accessory in the home.

From Los Angeles Times • Feb. 8, 2026

That is also transforming the image of an accessory that is "completely useless, very traditional, very masculine, and which requires great precision in terms of collar, knot and length", he said.

From Barron's • Jan. 31, 2026

My guy friends are constantly making fun of me for my commitment to such an ugly accessory.

From Slate • Jan. 25, 2026

While Macron did not explain the reason for the accessory during his speech, French reports have attributed it to an ongoing medical condition.

From BBC • Jan. 20, 2026

James picked up another hair accessory, a spray of paste diamonds, and pressed it against the side of his head.

From "The Red Car to Hollywood" by Jennie Liu

Related Words

• adornment
• appliance
• component
• decoration