This is the 242nd most frequent Icelandic word.
ætla
"Ætla" means "to intend," "to plan," or "to presume."
In this sentence, 'ætla' is used to indicate an intention or plan to do something.
Ég ætla að fara í gönguferð.
I plan to go on a hike.
In this question, 'ætla' is employed to inquire about someone's planned actions or intentions.
Hvað ætlarðu að gera á morgun?
What do you plan to do tomorrow?
Here, 'ætla' demonstrates the collective intention or agreement to participate in an activity.