A person who diets, usually in an effort to lose weight.(noun)
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Use "dieter" in a sentence
"It takes a clever "dieter" to figure out how to make calories vanish, or to feign ignorance while surrounded by large menu boards blaring the bad news."
""dieter" 's perception on fullness and even attitude to food altogether, the"
"In effect, Europe's claims to be cutting carbon production are a bit like the dieter who maintains a strict regime at home while insisting that a lunchtime donut-binge doesn't count because he eats them at the office."