What is another word for decentralization?

It depends which decentralization you mean. In the sense “the social process in which population and industry moves from urban centers to outlying districts”, the synonyms are decentalisation. Across all 2 senses there are 2 distinct synonyms, and they are not interchangeable with each other — this page lists them under the sense each one belongs to.

What is the opposite of decentralization?

The recorded antonym is centralization. Opposites are sense-specific too: this page shows which meaning each one is the opposite of, because a word rarely has a single opposite that holds for all of its senses.

Why are the synonyms for decentralization split into groups?

Because decentralization carries 2 recorded senses and each has its own set of substitutes. A single flat list would put words from unrelated meanings side by side with nothing to tell them apart, which is exactly how a writer picks the wrong one. The grouping comes from WordNet's synsets, not from an editorial judgement of ours.

Where do the synonyms for decentralization come from?

From Princeton University's WordNet, a lexical database maintained by lexicographers since 1985. A synonym here means a word form that shares a synset with this word — a set of forms interchangeable in one recorded context. Nothing on this page is generated by a language model.

Synonyms and antonyms

decentralization

decentralization/dɪˌsɛntɹəlɪˈzeɪʃən/

nounRare

decentralization has 2 distinct synonyms spread across 2 of its 2 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. Its one recorded opposite is centralization.

2
Distinct synonyms: 1
Antonym: 2 of 2
Senses with a relation

Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.