adjacentduo
nounUK /əˈdʒeɪsənt ˈdjuːəʊ/
US /əˈdʒeɪsənt ˈduːoʊ/
Two things or people that sit right next to each other.
The adjacentduo of chairs by the window was perfect for reading.
OTHER MEANINGS
2. Two musical notes played right next to each other on a scale.
The song ended on an adjacentduo that sounded a little tense.
3. Two friends who are always seen together.
Everyone at school knew the adjacentduo, always walking side by side.
4. Two items placed next to each other for comparison.
The museum displayed an adjacentduo of old and new vases.