Attachment is an extremely misunderstood concept; basically, it describes a child's relationship with his mother or father as it develops over the course of the first year of life. (slate.com)
The students were interviewed towards the end of their first year in college, three years later, and three years following. (sciencedaily.com)
For a 20 - year - old on the tail end of his first year as a pro basketball player, it can be difficult to adjust. (sbnation.com)