This is the 5509th most frequent Japanese word.
おっしゃる
"おっしゃる" means "to say" or "to speak," used as a respectful honorific form.
Expresses respectful mention or speech, emphasizing repetition.
彼女は何度もおっしゃっていました。
She mentioned it multiple times.
The respectful verb 'おっしゃる' is used to refer to someone else's speech in a polite way.
おっしゃった通り、準備が必要です。
As you said, preparation is necessary.
'おっしゃる' is used here respectfully to refer to the teacher's speech.