What is the meaning of "straight ahead ; straight down and straight up "? - Question about English (US) | HiNative
![Arrive Alive on X: "Motorcycle Safety - these hand signals have a meaning!! https://t.co/Irj0j4KIMi #ArriveAlive https://t.co/kLW3YW9t6H" / X Arrive Alive on X: "Motorcycle Safety - these hand signals have a meaning!! https://t.co/Irj0j4KIMi #ArriveAlive https://t.co/kLW3YW9t6H" / X](https://pbs.twimg.com/media/CVjTLDnWcAQ4w_b.jpg)
Arrive Alive on X: "Motorcycle Safety - these hand signals have a meaning!! https://t.co/Irj0j4KIMi #ArriveAlive https://t.co/kLW3YW9t6H" / X
![vertical_1 adjective - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com vertical_1 adjective - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com](https://www.oxfordlearnersdictionaries.com/media/american_english/fullsize/l/lin/line_/line.jpg)