hone

Types:

set

give a fine, sharp edge to a knife or razor

Type of:

sharpen

make sharp or sharper

Synonyms:

perfect

Types:

optimise, optimize

make optimal; get the most out of; use best

brush up, polish, polish up, round, round off

bring to a highly developed, finished, or refined state

Type of:

ameliorate, amend, better, improve, meliorate

to make better