to find out (something) (by accident); get knowledge of (something existing but not yet known)

find, uncover

(to cause a person, condition) to become better

make or become better

to remake, repair, (something broken, worn out or torn); restore (something) to good condition or working order

correct, improve, fix

to supply a new cover for (something)

make or become better

(to cause a person, thing) to become strong again after illness, exhaustion or loss

improve in health

(to cause a ship etc) to be made ready for use again by renewing or repairing parts

correct, improve, fix