Related Clues:

• Fits together
• Gives a thumbs-up
• Gets together, informally
• Lip-___ (fakes singing)
• Fits in
• Adapts
• Aligns
• Fits nicely
• Gets it together?
• Lip-___ (doesn't really sing)
• Jibes
• Matches, as tracks
• Engages, as gears
• Puts on the right wavelength
• Is on the same page, so to speak