This is the 72nd most frequent Armenian word.
այսօր
"Today"
Here, 'այսօր' functions as a temporal marker for the planned activity of going to the museum.
Այսօր մենք կգնանք թանգարան։
Today, we will go to the museum.
In this sentence, 'այսօր' specifies the current day as the contextual timeframe for the speaker's mood.
Ես այսօր լավ եմ տրամադրված։
I am in a good mood today.
In this sentence, 'այսօր' refers to the subjective properties related to the current day's weather conditions.