• -pack rat,
• pak rat,
• pac rat,
• oackrat,
• lackrat,
• -ackrat,
• 0ackrat,
• pzckrat,
• psckrat,
• pwckrat,
• pqckrat,
• paxkrat,
• pavkrat,
• pafkrat,
• padkrat,
• pacjrat,
• packorat,
• pakrat,
• pacrat,
• paccrat

• paygrade,
• pack rat,
• Packard.

The adjective form of the word "packrat" is "packratty".

The plural form of "packrat" is "packrats".

The singular form of the word "packrat" is "packrat". It remains the same in both plural and singular forms.