side-by-side

adjective
UK /ˌsaɪd baɪ ˈsaɪd/
US /ˌsaɪd baɪ ˈsaɪd/

Two things that are next to each other.

The two friends walked side-by-side down the street.


OTHER MEANINGS

2. Placed close together for comparison.

The report showed a side-by-side comparison of the two cars.

3. Working or existing together at the same time.

The two teams worked side-by-side on the project.

4. In a position directly beside someone or something.

The books sat side-by-side on the shelf.