Take on or Take off?

to accept a task or a responsibility and try to do it as well as you can
I’m going to take on the job of selling three cars every week.

compete against, fight or challenge
Our team is prepared to take on the champions.

acquire; gain over time
Over time some words take on new meanings

allow on board
We stopped at Singapore to refuel and take on more passengers.

employ
Our company wants to take on some extra staff.

to succeed; begin to succeed
It took a while for the film to take off.

remove
I take off my clothes to have a shower.

leave the ground and start flying
I like to watch planes take off.

leave; go away
I'm going to take off to the beach for the weekend.

imitate; mimic
He can take off lots of famous people.