She said, “Go to Learners Dictionary dot com [=the Web site www.learnersdictionary.com] for more information.”
She arrived at 3 o'clock 'on the dot'. = She arrived 'on the dot of' 3. [=she arrived exactly at 3 o'clock]
We need some extra time to 'dot the i's and cross the t's' on the report.
(..) Thanks. Man, I'm stuffed. Me too. I ate like a pig! Pumbaa-- you are a pig. Oh. Right. Timon? Yeah? Ever wonder what those sparkly dots are up there? Pumbaa. I don't wonder; I know. Oh!...What are they? They're fireflies. Fireflies that uh, got stuck up on that big, bluish-black, thing. (..)1994 The Lion King