кас: person
It became clear that in the guest house there was only room for four people.
Ман ғайр аз ҳамон духтар, ҳеҷ каси дигарро ба занӣ намегирам.
Besides that girl, I will not take another person as my wife.
Resources for learning Tajik
Bonus:
одамизод: humankind
одамкуш: murderer
одамдузд: kidnapper
одамхӯрӣ: cannibalism
Одам is also the name of the first human, translated in English as Adam.
Bonus:
Synonyms: саёҳаткунанда, сафаркунанда, ҷаҳонгард
In Tajikistan the Russian loan word, турист, is still commonly used.
сайёҳӣ: tourism
In Tajikistan 2018 has been declared “Соли рушди сайёҳӣ ва ҳунарҳои мардумӣ”, the year of the development of tourism and handicrafts.
Bonus:
There are two plural endings for nouns: ҳо and он. The ending он is only used for animate objects (people, animals etc.) with a few exceptions. The ending ҳо is the usual ending in casual speech. When a noun ends in a vowel the ending is гон instead of он, as in нависандагон.
The word набисанда is composed of the present tense verb stem, навис-, and the suffix анда. Here are a few more words formed in the same way.
хонанда: reader
нӯшанда: drinker
ронанда: driver
харанда: buyer
диҳанда: giver
парастанда: worshipper
чинанда: picker, one who picks
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Synonym: сағир
ятимхона: orphanage
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Synonym: тифл
кӯдаки навзод: newborn child
кӯдаквор: childlike
кӯдакдор: (adj.) having a child or children, as in зани кӯдакдор, a woman with a child
To pluralize something living you can use the suffix он instead of ҳо. Colloquially both endings are used, but in writing the suffix он is usually used.
Bonus:
synonyms: маслиҳатгар, маслиҳатдиҳанда
маслиҳат: advice
Bonus:
шоира: poetess (female poet)
шоирӣ: poetry
шоирона: poetic
Wikipedia has a list of Tajik poets and from there you can click the links to read about each one.