1. By chance
   - possibly, perhaps, maybe, mayhap [archaic], peradventure [archaic] 
2. [archaic] Through chance, "To sleep, perchance to dream.."
   - by chance [archaic]

Encyclopedia: Perchance

• pewit
• pewit gull
• pewter
• Peyer's patch
• peyote
• Peyton Rous
• Peziza
• Peziza coccinea
• Peziza domicilina
• Pezizaceae
• Pezizales
• Pezophaps
• Pezophaps solitaria
• Pfalz
• pfannkuchen
• PFC
• pfennig
• pfft
• PFLP
• PFLP-GC
• PG
• pH
• pH scale
• phacelia
• Phacelia campanularia