serjeant-at-armsnoun (pl serjeants-at-arms)

• pentadactyl
• Pentagon
• pentagon
• pentagram
• pentahedron
• pentamerous
• pentameter
• pentamidine
• pentane
• pentangle
• pentanoic acid
• pentaprism
• Pentateuch
• pentathlete
• pentathlon
• pentatonic
• pentavalent
• Pentecost
• Pentecostal
• penthouse
• pentimento
• pentobarbital
• pentobarbitone
• pentode
• pentose