Merriam-Webster's Dictionary and Thesaurus - Merriam-Webster [531]
flat·foot noun, plural flat·feet : a condition in which the arch of the foot is flattened so that the entire sole rests upon the ground
— flat–foot·ed adjective
Flat·head noun, plural Flatheads or Flathead : a member of an American Indian people of Montana
flat·iron noun : IRON 3
flat·land noun : land lacking significant variation in elevation
flat–out adjective 1 : being or going at maximum effort or speed
2 : OUT-AND-OUT, DOWNRIGHT flat out adverb 1 : BLUNTLY, DIRECTLY 2 : at top speed 3 usually flat–out : to the greatest degree : COMPLETELY flat–panel adjective : relating to or being a thin flat video display flat·ten verb : to make or become flat flat·ter verb [ORIGIN: ME flateren, fr. AF flater to lap, flatter] 1 : to praise too much or without sincerity 2 : to represent too favorably 3 : to display to advantage 4 : to judge (oneself) favorably or too favorably — flat·ter·er noun Synonyms blarney, overpraise; also cajole, coax, wheedle; fawn, kowtow, toady; idolize, worship; eulogize, extol, laud, praise; applaud, commend, compliment; congratulate, felicitate; drool, gush, slaver, slobber; endear, ingratiate; court, woo flat·tery noun, plural -ter·ies : flattering speech or attentions : insincere or excessive praise Synonyms adulation, blarney, overpraise; also endearments; compliments, greetings, regards, respects; adoration, idolatry, worship; cajolery, endearment; acclaim, applause, commendation, praise flat·top noun 1 : AIRCRAFT CARRIER 2 : CREW CUT