What is Pairing or Transition or Crosswalk or Associative table ?

Junction tables are known under many names, including : 

• Mapping table
• Bridge table
• Linking table / Link table
• Cross-reference table
• Join table
• Pairing table
• Intersection table / entity
• Many-to-many resolver
• Transition table
• Crosswalk
• Associative table / entity

See also : What is junction table ?