partition

Short definition from Wiktionary

Noun

1. 1
   An action which divides a thing into parts, or separates one thing from another.
2. 2
   A part of something that has been divided.
3. 3
   An approach to division in which one asks what the size of each part is, rather than (as in quotition) how many parts there are.
4. 4
   The division of a territory into two or more autonomous ones.
5. 5
   A vertical structure that divides a room.
6. 6
   That which divides or separates; that by which different things, or distinct parts of the same thing, are separated; boundary; dividing line or space.
7. 7
   A part divided off by walls; an apartment; a compartment.
8. 8
   The severance of common or undivided interests, particularly in real estate. It may be effected by consent of parties, or by compulsion of law.
9. 9
   A section of a hard disk separately formatted.
10. 10
    A division of a database or one of its constituting elements such as tables into separate independent parts.
11. 11
    A division of a data stream, such as a messaging queue or topic (often representing a unit of parallelism, and of fault tolerance).
12. 12
    A collection of non-empty, disjoint subsets of a set whose union is the set itself (i.e. all elements of the set are contained in exactly one of the subsets).
13. 13
    A musical score.

Verb

1. 1
   To divide something into parts, sections or shares.
2. 2
   To divide a region or country into two or more territories with separate political status.
3. 3
   To separate or divide a room by a partition (ex. a wall), often use with off.