(especially Northern Vietnam) piece of fruit / (by extension) something round / (Northern Vietnam) round, painted casket (i.e., a jewelry box) with a lid / (Northern Vietnam) punch (a hit or strike with one's fist)

(especially Northern Vietnam) Refers to anything round, such as a piece of fruit.

black cardamom (Lanxangia tsaoko, formerly called Amomum tsao-ko)

ginkgo nut (eaten as a food)

result

to result in

(dialectal, Northern Vietnam, zoology) snakehead

a widow (woman whose spouse has died)

positive effect or result

efficacious; efficient; effective