a time period usually extending from Friday night through Sunday; more loosely defined as any period of successive days including one and only one Sunday

spend the weekend

a homeowner who acts as a contractor and tries to do major improvement projects on weekends (often without understanding the scope of the work to be done)

a reservist who fulfills the military obligation on weekends

someone who vacations on a weekend

a small suitcase to carry clothing and accessories for a weekend trip