1. (informal) in a state of confusion 
2. (informal) in dispute; in disagreement

Encyclopedia: At sixes and sevens

• pitchstone
• pitchy
• piteous
• piteously
• piteousness
• pitfall
• pith
• pith hat
• pith helmet
• pithead
• Pithecanthropus
• Pithecanthropus erectus
• Pithecellobium
• Pithecellobium dulce
• Pithecellodium unguis-cati
• Pithecia
• Pithecolobium
• pithily
• pithiness
• pithy
• pitiable
• pitiably
• pitiful
• pitifully
• pitiless