flatfoot

• POS: Noun
• HYPHEN: flat=foot

CIDE DICTIONARY

flatfoot,  

 A foot in which the arch of the instep is flattened so that the entire sole of the foot rests upon the ground; also, the deformity, usually congential, exhibited by such a foot; splayfoot.  [1913 Webster]

flatfoot, n. 

 a police officer, especially a foot patrolman.  [PJC]

OXFORD DICTIONARY

flatfoot, n. (pl. -foots or -feet) sl. a policeman.

THESAURUS

flatfoot

Dogberry, John Law, beagle, bluecoat, bobby, bowlegs, bull, camelback, cleft palate, clubfoot, cop, copper, crookback, defacement, deformation, deformity, dick, disfigurement, eye, flattie, freakishness, gendarme, gumshoe, gumshoe man, harelip, hawkshaw, humpback, hunchback, knock-knee, kyphosis, lordosis, malconformation, malformation, misproportion, misshape, monstrosity, mutilation, peeler, pig, private eye, shamus, skip tracer, sleuthhound, splayfoot, spotter, swayback, talipes, tec, teratology, the cops, the fuzz, the law, torticollis, truncation, valgus, wryneck