1 optimization

2 to optimize

3 to make superior

1 variant: 花 huā

1 to put on makeup

1 cosmetic

2 makeup product

1 chemistry

2 chemical

1 to treat everyone equally favorably (idiom); not to discriminate between people

1 to succeed or die trying (idiom)

1 people of good will (idiom); charitable person

1 gentleman aspiring to benevolence (idiom); people with lofty ideals

1 those with lofty ideals (idiom)

2 men of vision