The trucks gain/gather 'speed' as they drive down the hill. = The trucks pick up 'speed' as they drive down the hill. [=the trucks go faster as they drive down the hill]
He types at a 'speed' of about 50 words per minute. = His typing 'speed' is about 50 words per minute.
Let me 'bring you up to speed' on our plans. [=let me tell you about the changes in our plans]
(..) Incoming! - Carrots! - Don't stop! Keep going. - No, please stop! - Do not stop this car. - Speed up, Nick. Speed up! - There's another train coming! Trust me, speed up. Stop the train! Hey! Need some help? Oh, no. Too fast! (..)2016 Zootopia
(..) with me. Horses and baseball. He disappeared last year. What do you teach? Shorthand? - English. - Yeah. That's what he taught. Shorthand and speed readin'. Roast beef sandwiches all right with you guys? I'm so sick about the Columbia-Brown game, I'm lucky I could swallow. Tell us about it, Benny. (..)1974 The Gambler
(..) Wow! It's that fast? So, that is signal transduction from this root to the root of the tree next to it. So, we should take a sample. Okay. Sample. You know, it's probably electrical, based on the speed of the reaction. Norm, you've contaminated the sample with your saliva. Right. So, here I go. (..)2009 Avatar