a small healthcare facility
Dad went to the clinic to get his arm looked at.

A check-up is a medical examination by your doctor or dentist to make sure that there is nothing wrong with your health.
After the checkup, Dad and the doctor talked and talked!

the food that a person usually eats
I intend to have a healthier diet by eating more fruit.

to make healthy or well again
The liver can heal very quickly.

I think I need to cut down on my use.

containing or having a taste like sugar
Many cereals are too sugary for kids.

a person who has an uncontrollable habit of drinking ALCOHOL
A(n) alcoholic drinks too much and desperately needs help.

as stated or reported by
according to one story, a four-leaf clover brings you good luck.