slim down phrasal verb ( see also ↑ slim )
1 . to reduce the size or number of something, or to become reduced in size or number
slim something ↔ down
The company is trying to slim down its workforce.
slim down to
The Cabinet has been slimmed down to 16 members.
2 . to make your body thinner, or to become thinner, especially in order to be healthier or more attractive
slim something ↔ down
How can I slim down my hips?
slim down to
She slimmed down to a healthy 61 kilos.
—slimmed-down adjective