longside
nounUK /ˈlɒŋsaɪd/
US /ˈlɔːŋsaɪd/
The long side of something is the longer edge or surface of it.
She measured the longside of the table to see if it would fit.
OTHER MEANINGS
2. A position or direction along the longer dimension of an object.
The boat was tied longside to the dock.
3. In sports, the longer boundary or touchline of a playing field.
The player sprinted down the longside of the pitch.
4. The longer face of a cut gemstone or building block.
The mason smoothed the longside of the stone before setting it.