Le mot anglais pour décoller est
take off

Définition en anglais

décoller
1. v. to take off (i.e. a plane)
2. v. unstick
Cela m'a pris beaucoup de temps de décoller toutes les affiches. - It took me a long time to unstick all the posters.
3. v. (takes a reflexive pronoun, intransitive) to come undone, come unstuck

on one's way

on one's way

on one's way
1. prep. On the direct route that one intends to travel.
I can drop you at the station, as it is on my way home.
2. prep. Leaving; going about one's business.
If we're done, I'll be on my way.