Word A Day

Ӯ аз ҳеҷ чиз тарсу бим надорад.
He has no fear of anything. (He is not scared of anything.)
Онҳо бетарсу бим гапашонро гуфтанд.
They spoke without fear. (They said their speech without fear.)

Bonus:
The words тарс and бим both mean fear. In Tajik sometimes two words with similar meanings are combined with у (and) to emphasize the meaning.
Synonym: тарсу ҳарос
Sometimes two related words are combined with у.
тарсу ларз: fear and trembling

Ман дар синфи дуюм мехонам.
I am in second grade.
Хурӯс бори дуюм бонг зад.
The rooster crowed a second time.

Bonus:
Sometimes this word is written дувум.
To form ordinal numbers (first, second, third…) add the suffix -ум to the number. If the number ends in a vowel, the suffix is -юм.
як, якум: one, first
ду, дуюм: two, second
се, сеюм: three, third
чор, чорум: four, fourth
Ordinal numbers are often abbreviated when writing dates, as in “5-уми апрел” (the fifth of April).

Соат даҳ шуд, аммо поезд ҳанӯз наомадааст.
It is ten o’clock, but the train has still not come.
Мавсими анҷир ҳанӯз нарасида буд.
The season for figs had not yet arrived.

Bonus:
Synonyms: то ҳол, то ин вақт, то акнун, ҳоло ҳам.

Барои одамони калон ҳашт соат хоб кардан кифоя аст.
For adults, eight hours of sleep is enough.
Шаш ҳазор рубли русӣ барои зиндагии дар пойтахти Русия кифоя нест.
Six thousand Russian rubles is not enough for living in the capital of Russia.

Bonus:
Synonyms: басанда, кофӣ
Another way to express if something is enough:
мерасад: it is enough; it will be enough
намерасад: it is not enough; it will not be enough
Here is a Tajik pop song: Кифоя нест (It is not enough). I couldn’t find the lyrics online. Maybe somebody would like to take on the challenge to translate it and put the lyrics in the comments.