1. Depressed like a navel

See also: concave

• footgear
• foothill
• foothold
• footie
• footing
• footle
• footless
• footlights
• footling
• footlocker
• footloose
• footman
• footmark
• footnote
• footpad
• footpath
• footplate
• footprint
• footprint evidence
• footrace
• footrest
• footsie
• footslog
• footslogger
• footsore