The plural is formed using the suffix -lar / -lər / -nar / -nər, joined to the noun following the rules of vowel and consonant harmony. With compound nouns, the suffix is always attached to the last component. If that component has the possessive suffix, the plural ending is joined first and the possessive suffix is added to it.
at (horse) – atlar (horses)
et (dog) – etlər (dogs)
keşe (person) – keşelər (persons, people)
bala (child) – balalar (children)
universitet (university) – universitetlar (universities)
urınbasar (deputy, representative) – urınbasarlar (deputies, representatives)
kömeş qaşıq (silver spoon) – kömeş qaşıqlar (silver spoons)
altın səğət (gold watch) – altın səğətlər (gold watches)
💡 Pay attention, that if a stem ends in a nasal sound -m / -ñ / -n, the plural suffixes change to -nar / -nər:
uram (street) – uramnar (streets)
bəyrəm (holiday) – bəyrəmnər (holidays)
urman (forest) – urmannar (forests)
idən (floor) – idənnər (floors)