(status with respect to the relations between people or groups; "on good terms with her in-laws"; "on a friendly footing")
(a relation that provides the foundation for something; "they were on a friendly footing"; "he worked on an interim basis")
(a place providing support for the foot in standing or climbing)
(pay for something; "pick up the tab"; "pick up the burden of high-interest mortgages"; "foot the bill")
(walk; "let's hoof it to the disco")
(add a column of numbers)