ENGLISH
REFERENCE

in conjunction with sb/sth

prep. phr..
B2 Upper Intermediate Oxford

prep. phr.. you use this when two or more things happen or work together at the same time.

prep. phr.. a prepositional phrase indicating a state of combination or simultaneous action; used to link two entities or actions that cooperate or coincide.


SIMPLE

The medicine works best in conjunction with a healthy diet.

CONTEXTUAL

The local police worked in conjunction with the FBI to solve the complex case.

COMPLEX

The new environmental regulations were developed in conjunction with leading scientists to ensure they were both effective and practical.

Usage

often used in formal or professional writing to describe teamwork or combined effects.

Teaching tip

contrast with 'together with' (more common) and 'alongside' (more physical); 'in conjunction with' is the preferred choice for formal reports and academic contexts.

Pitfall

in conjunction to the projectin conjunction with the projectthe phrase always requires the preposition 'with' to connect to the object.

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