side-by-side
adjectiveUK /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.
RELATED WORDS
OTHER MEANINGS
2. Done by two or more people working together at the same time.
They did a side-by-side comparison of the two phones.
3. A type of gun with two barrels placed next to each other.
The hunter carried a side-by-side shotgun.
4. In a position where two things are placed directly beside one another.
The books sat side-by-side on the shelf.