dandruff or (rare) dandriff /danˈdrəf/

A scaly scurf on the skin under the hair

• headset
• headsets
• headshake
• headshakes
• headsheets
• headship
• headships
• headshot
• headshots
• headshrinker
• headshrinkers
• headsman
• headsmen
• heads of state
• headsquare
• headsquares
• headstall
• headstalls
• head start
• head starts
• head-station
• head-stations
• headstick
• headsticks
• headstock