umph /hmh, hm or mf/ same as humph¹

• power loom
• power looms
• power lunch
• power lunches
• power nap
• power naps
• power of attorney
• power of the keys
• power-on self-test
• power pack
• power packs
• power plant
• power plants
• powerplay
• powerplays
• power point
• power points
• power politics
• power press
• power presses
• powers
• power series
• power set
• power sets
• power-sharing