агарчи: though, although
Though he is young, he is brave.
Агарчи чашмонаш кушода буданд, ҳеҷ касро намедид.
Although his eyes were open, he didn’t see anybody.
Synonym: ҳарчанд, гарчи
Usually only animate objects (people, animals etc.) can take the plural ending -он, but body parts that occur in pairs can also sometimes take the plural ending -он, instead of the plural ending for inanimate objects, -ҳо. In the second sentence, notice that the plural for eyes is чашмон instead of чашмҳо.