Noun

(countable, uncountable) a division into smaller pieces of something that has already been divided; to separate something

Subdivide the sentence into pieces and understand it a bit at a time.

(countable) such a piece that has been divided

Work on one subdivision at a time.

(countable) a parcel of land that has been divided into lots

(countable) a group of houses created by the same builder or in the same general area

They're putting in a new subdivision out past Black Ranch Road.

Noun

(en noun)

The act of associating.

The state of being associated; a connection to or an affiliation with something.

* {{quote-magazine, year=2012, month=March-April

, author=(Jan Sapp) , title=Race Finished , volume=100, issue=2, page=164 , magazine=(American Scientist) citation , passage=Few concepts are as emotionally charged as that of race. The word conjures up a mixture of associations —culture, ethnicity, genetics, subjugation, exclusion and persecution. But is the tragic history of efforts to define groups of people by race really a matter of the misuse of science, the abuse of a valid biological concept?}}

(statistics) Any relationship between two measured quantities that renders them statistically dependent (but not necessarily causal or a correlation).

A group of persons associated for a common purpose; an organization; society.