Looking up...
Next to or beside something or someone
The ship sailed alongside the coast.
The ship sailed next to the coast.
He placed the book alongside the others on the shelf.
He placed the book next to the others on the shelf.
Can be used both literally and figuratively to describe physical proximity or association.
'Alongside' is often used in both formal and informal contexts to describe physical proximity or association.
'Alongside' can function as a preposition, meaning it does not require an additional preposition like 'of' or 'with'.
From Middle English 'along' + 'side', meaning 'by the side of'.
Often used to describe physical proximity, but can also be used metaphorically to describe association or partnership.