This is the 221st most frequent Catalan word.
estar
"Estar" means "to be" (used for temporary states, locations, or conditions).
Here, 'estic' is the first person singular present tense form of the verb 'estar', used to indicate a temporary physical state or condition.
Estic cansat després de treballar tot el dia.
I am tired after working all day.
In this sentence, 'està' is the third person singular present tense form of 'estar', used to indicate the location of an object.
La taula està a la sala d'estar.
The table is in the living room.
'Estem' represents the first person plural present tense of 'estar', expressing a temporary emotional state or condition.