• pennie,
• prening,
• pennent,
• pengin,
• pennding,
• paning,
• meanning,
• oponning,
• ceaning,
• jenning,
• ponning,
• meening,
• prunning,
• pensin,
• payning,
• pinding,
• ceining,
• zonning,
• poending,
• lennin

• punning,
• penoncel,
• pennington,
• pennoncel,
• Pennines,
• penance,
• peninsula,
• pinning.

The adjective form of the word "penning" is "penned".

The plural form of the word "penning" is "pennings".

The singular form of the word "penning" is "pen"