This is the 125th most frequent Japanese word.
よく
"よく" means "well," "often," or "frequently," depending on the context.
よく means 'often' in this sentence, indicating frequency.
よく映画を見ます。
I watch movies often.
よく implies 'frequently' in this sentence, describing repeated action.
友達がよく助けてくれました。
My friend helped me frequently.
よく means 'well' here, expressing the extent of knowledge or familiarity.