1. (

• lag ,
• dawdle ,
• fall_back ,
• fall_behind

) hang (back) or fall (behind) in movement, progress, development, etc. ;

2. (

• imprison ,
• incarcerate ,
• lag ,
• immure ,
• put_behind_bars ,
• jail ,
• jug ,
• gaol ,
• put_away ,
• remand

) lock up or confine, in or as in a jail; "The suspects were imprisoned without trial"; "the murderer was incarcerated for the rest of his life" ;

3. (

• lag

) throw or pitch at a mark, as with coins ;

4. (

• lag ,

) cover with lagging to prevent heat loss; "lag pipes" ;