Pronunciation: (u-lông'sīd', u-long'-), [key]
along, by, at, or to the side of something: We brought the boat alongside.
1. beside; by the side of: The dog ran alongside me all the way.
2. alongside of, compared with: Alongside of his brother, he is no student at all.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.