This is the 16352nd most frequent Russian word.
ремешка
"Ремешка" is the diminutive form of "ремешок," meaning "small strap" or "little belt" in English.
The word 'ремешка' here is in its genitive singular form, used to denote possession or source.
На часы нужно заменить ремешок, потому что он порвался.
The strap on the watch needs to be replaced because it broke.
In this sentence, 'ремешка' functions in the genitive case and is used to describe the strap's color.
Цвет ремешка на её сумке очень красивый.
The color of the strap on her bag is very beautiful.
Here, 'ремешок' is in the nominative singular form and refers to a physical object being discussed.