How to say "united" in Japanese

Choosing the right word

統一的とういつてきCommon
na-adjectiveCovers 'united' in the sense of unified: made into one coherent whole rather than left as separate parts. As an adjective it describes views, policies, or organizations that are coordinated as one.
合同ごうどうJLPT N2approx.Common
no-adjectiveCovers 'united' as joint or combined: separate parties merged into one or acting together. A noun for a merger or amalgamation, it also modifies other nouns to mean 'joint', as in a joint ceremony.

Use 統一的 for 'united' meaning unified or coordinated as a single whole, and 合同 for 'united' meaning joint or combined, where separate parties merge into one or act together.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents

統一的とういつてきunited
ユナイテッドunited
一丸となっていちがんとなってin unison
合同ごうどうcombined

JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

Say it right, write it right