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in cooperation

ADVERB
synchronously
Synonyms
WEAK
all at once all together as one at one fell swoop closely coincidentally collectively combined commonly concertedly concomitantly concurrently conjointly contemporaneously en masse hand in glove hand in hand in a body in concert in one breath in sync in tandem in unison jointly mutually on the beat side by side simultaneously synchronically unanimously unitedly with one accord with one voice with the beat
ADVERB
together
Synonyms
STRONGEST
closely collectively in tandem jointly simultaneously
STRONG
unitedly
WEAK
all together as one at one fell swoop coincidentally combined commonly concertedly concomitantly concurrently conjointly contemporaneously en masse hand in glove hand in hand in a body in concert in one breath in sync in unison mutually on the beat side by side synchronically unanimously with one accord with one voice with the beat
Antonyms
WEAK
apart individually separately

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

But they have largely lived off domestic demand from Japan's military, often in cooperation with US defence firms.

From Barron's • May 3, 2026

The search tool was set up by the German newspaper, Die Zeit, in cooperation with archives in Germany and in the United States.

From BBC • Apr. 14, 2026

Microsoft also said it would help train one million engineers and developers by 2030 in cooperation with Japanese companies.

From The Wall Street Journal • Apr. 3, 2026

The investment unveiled Friday also includes funds to enhance cybersecurity partnerships with Japanese government agencies, and to train one million engineers in cooperation with telecom and tech giants NTT and NEC.

From Barron's • Apr. 3, 2026

Moine has put together, in cooperation with Gau, what he calls a financial planner’s script book.

From "The Tipping Point" by Malcolm Gladwell