verb (used with object), re·it·er·at·ed, re·it·er·at·ing. to say or do again or repeatedly; repeat, often excessively.

What does it mean to reiterate something?

reiterate \ree-IT-uh-rayt\ verb. : to state or do over again or repeatedly sometimes with wearying effect.

Is reiterate a rude word?

"To Reiterate"

This phrase is simply unnecessary and can come off as a bit rude, especially if you put it in a first email to someone. ... If you're typing "to reiterate" in an email, it's because you assume the recipient didn't understand your message the first time.