агарчи

агарчи: though, although

Агарчи ӯ ҷавон аст, ӯ далер аст.
Though he is young, he is brave.
Агарчи чашмонаш кушода буданд, ҳеҷ касро намедид.
Although his eyes were open, he didn’t see anybody.

Bonus:
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.

ё

ё: or

Равам ё наравам?
Should I go or not?
Ман намедонам, ки корро имрӯз ба анҷом мерасонам ё не.
I don’t know whether I will complete the work today or not.


Bonus:
Using ё twice in a sentence can be translated as “either…or…”:
Ҳар бегоҳӣ ё ман ба дидани бародарам мерафтам, ё ӯ ба назди ман меомад. – Every evening either I went to see my brother, or he came to see me.