[along.side] adv (1707) 1: along the side: in parallel position
2: at the side: close by "a guard with a prisoner ~"
[2]alongside prep (1793) 1 a: along the side of b: beside 1
2. a: in company with "men she has been working ~ --Richard Halloran" b: in addition to "a special category ~ the awards it annually presents --Horizon"