IPA: /ˈslɪmə/
KK: /ˈslɪmɚ/
Having less body weight or being thinner than someone or something else.
She looks slimmer after following her new diet plan.
A person who is trying to lose weight or become thinner, often through dieting or exercise.
She is a slimmer who follows a strict diet to achieve her weight loss goals.
Slimmer → It is formed from "slim" (from Middle English *slim*, meaning slender or thin) and "-er" (meaning a person who). The word "slimmer" refers to a person or thing that is more slender or thin than another.
Think of someone who is 'more slender' — the '-er' indicates a comparison, so a slimmer person is one who is thinner than others.