ADJ
                            
                            
                                - deep, shallow
 
- bottomless
 
- black, dark
 
- chalk, gravel
 - a disused gravel pit
 
                             
                         
                                                
                                         
             
         
                
            
            
                
                                            
                            
                                
ADJ
                            
                            
                                - open
 - They extract the mineral from open pits and underground mines
 
                             
                         
                                                
                            
                                
VERB + PIT
                            
                            
                                - go down
 - He went down the pit at the age of fifteen
 
                             
                         
                                                
                            
                                
PIT + NOUN
                            
                            
                                - village
 - There's no more work in these pit villages
 
- closure
 
                             
                         
                                                
                            
                                
PREP
                            
                            
                                - in a/the ~
 - Most boys in the village worked in the pits