This is the 507th most frequent Estonian word.
tihti
Often.
Here, 'tihti' is used as an adverb to describe the frequency of the action 'käin' (go).
Ma tihti käin hommikuti jooksmas.
I often go running in the mornings.
Here, 'tihti' describes the common occurrence of the action 'unustavad' (forget).
Õpilased tihti unustavad kodutööded ära.
Students often forget their homework.
In this sentence, 'tihti' is used to indicate how frequently 'märkab' (notices) occurs.