attachment Definition

1a. An act or means of fastening;
1b. The state of being fastened.
2. Liking or affection.

Example: His attachment for the car was obsessive
Thesaurus: fondness, love, affection, liking, devotion, affinity.
3. An extra part that can be fitted to a machine, often used for changing its function slightly.

Example: a diffuser attachment for the hairdryer
Thesaurus: accessory, extension, supplement, addition, annex, adjunct.
4. A legal seizure of a person or property.
5. A temporary period of working with a different group.