involve
in volv
- v connect closely and often incriminatingly
 - v  engage as a participant
                    
                        
                            
Don't involve me in your family affairs! - v  have as a necessary feature
                    
                        
                            
This decision involves many changes - v require as useful, just, or proper
 - v  contain as a part
                    
                        
                            
Dinner at Joe's always involves at least six courses - v  occupy or engage the interest of
                    
                        
                            
His story completely involved me during the entire afternoon - v  make complex or intricate or complicated
                    
                        
                            
The situation was rather involved 
- If needed, such a process could involve subpoena powers and even the authority to obtain immunity from prosecution in order to get to the whole truth.
 - Modern in-vitro techniques generally involve creating multiple embryos in the laboratory, transferring two or three and hoping that at least one will make it through to birth.
 - Adult sexual networks look very different and usually involve clusters of wanton individuals known to public-health experts as "core transmitters.