HMC

1. (His or) Her Majesty's Customs
2. Headmasters' and Headmistresses' Conference

• pipestone
• pipestones
• pipe-stopple
• pipe-stopples
• pipe-track
• pipe-tracks
• pipe-tree
• pipe-trees
• pipette
• pipetted
• pipettes
• pipetting
• pipe up
• pipe-wine
• pipe-wines
• pipework
• pipeworks
• pipewort
• pipeworts
• pipe-wrench
• pipe-wrenches
• pipi
• pipier
• pipiest
• piping