This is the 393rd most frequent Slovak word.
bol
"Bol" means "was" in English.
Used as a verb ('was'), 'bol' indicates a past tense of the verb 'to be' in the masculine singular first person.
Bol som včera v kine.
I was at the cinema yesterday.
Here, 'bol' functions as the past tense third-person singular masculine form of 'to be', indicating 'it was' in the context of describing the day.
Bol to ťažký deň.
It was a hard day.
In this interrogative sentence, 'bol' is used as the past tense third-person singular masculine form of 'to be', asking about the location or state of someone's brother.