Yes, foot is playable
...and is worth 7 points.
Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Foot" Definition
noun
A manner of moving; a step: walks with a light foot.
A structure used for locomotion or attachment in an invertebrate animal, such as the muscular organ extending from the ventral side of a mollusk.
A unit of length in the U.S. Customary and British Imperial systems equal to 12 inches (0.3048 meter). See Table at measurement.
A unit of poetic meter consisting of stressed and unstressed syllables in any of various set combinations. For example, an iambic foot has an unstressed followed by a stressed syllable.
Botany The base of the sporophyte in mosses and liverworts.
idiom
Best foot forward A favorable initial impression: He always has his best foot forward when speaking to his constituents. Put your best foot forward during an employment interview.
Feet of clay An underlying weakness or fault: "They discovered to their vast discomfiture that their idol had feet of clay, after placing him upon a pedestal” ( James Joyce).
Foot in the door Slang A first step in working toward a goal.
Foot in the door Slang An initial point of or opportunity for entry.
Have one foot in the grave Informal To be on the verge of death, as from illness or severe trauma.
verb-intransitive
Nautical To make headway; sail.
To dance. Often used with it: "We foot it all the night/weaving olden dances” ( William Butler Yeats).
To go on foot; walk. Often used with it: When their car broke down, they had to foot it the rest of the way.
verb-transitive
To add up (a column of numbers) and write the sum at the bottom; total: footed up the bill.
To execute the steps of (a dance).
To go by foot over, on, or through; tread.
To provide (a stocking, for example) with a foot.
verb
To perform the movements of (a dance).
To walk, run, or dance on, over, or through.
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