In tandem British American phrase
The explorers have operated in tandem with scientists.
My boss wants two groups to work in tandem on this project.
To spend a great deal of time together
No one is able to do anything just by themselves.
To live in the same home together.
1. At the same time.
2. Suddenly and unexpectedly.
People who are in love will overcome any difficulty to be together. (Sometimes used ironically to imply that someone is in love with something he or she is attempting to be near).
Beside the phrase "in tandem", we can use "in tandem with" in the sentence.
The heart will be transplanted in tandem with the lungs.(the heart and lungs will be transplanted in tandem.)
My friend and I decided to wind-surf in tandem.
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Originated from Latin, 'tandem' means 'at length'. It was at first used in English as an expression for a carriage drawn by two horses harnessed one in front of the other. The first meaning reflects this late 18th-century sense, but since the middle of 20th century this idiom has been commonly used to mean simply 'working as a team or a group'.