This is the 3171st most frequent Spanish word.
acabas
"Acabas" means "you finish" or "you end" in English.
The word "acabas" is used here as the second person singular conjugation of the verb "acabar" in the present tense, forming a phrase with "de" to indicate a recent action.
¿Acabas de llegar a casa?
Did you just arrive home?
In this sentence, "acabas" is again the present tense conjugation of "acabar" for "tú," used to indicate completing an action.
Cuando acabas una tarea, sientes que tienes tiempo libre.
When you finish a task, you feel like you have free time.
Here, "acabas" serves as part of a conditional expression, describing an action that might be completed depending on the circumstances.