This is the 966th most frequent Latvian word.
četrus
The Latvian word "četrus" means "four" (accusative form).
In this sentence, "četrus" is the accusative masculine plural form of "četri", indicating the quantity of the direct object "ābolus".
Iegādājos četrus ābolus tirgū.
I bought four apples at the market.
Here, "četrus" modifies "krēslus" and agrees with it in case (accusative) and number (plural).
Mājās mums ir četrus krēslus.
At home, we have four chairs.
In this sentence, "četrus" directly quantifies the masculine plural noun "zēnus" in the accusative case, indicating the boys seen.