To board or mount (something), especially a vehicle.
Please get on the bus as quickly as possible.
She has no trouble getting off a bus but has difficulty getting on.
1 more example
I had to get on a chair to change the light bulb.
2
To cope or manage (over time); to handle a situation; to perform or make progress.
John is really getting on at work.
I hear John has a new job. How's he getting on?
1 more example
She's getting on very well at school.
3
Often, With "with" To progress (with); to move forward.
It's time to get on with improving quality.
We've wasted enough time now. Can we get on, please?
1 more example
'He must get on, from every point of view,' argued Carrados to pass the seconds. 'Five minutes to fix the rig, ten more to send his message, five to pack up. Heavens! it seems an hour already.'1927, Ernest Bramah [pseudonym; Ernest Brammah Smith], Max Carrados Mysteries:
4
Often, Of time, With "with" To move forward so as to approach a deadline or become late in the day.
Time is getting on. We need to hurry up or we'll miss our flight.
The hour is getting on. It'll be dark soon.
5
With "for" To approach (a value, level, point in time, etc.)
Usually in continuous tenses
The cost was getting on for a thousand pounds.
She must be getting on for 65 years of age.
2 more examples
There were getting on for 40 people last night.
It was getting on for midnight before I went to bed.
6
To become old.
Usually in continuous tenses
My parents are visibly getting on (in years) these days.
7
UK, Often, With 'with' To have a good relationship; to get along.
“I don't know how you and the ‘head,’ as you call him, will get on, but I do know that if you call my duds a ‘livery’ again there'll be trouble. It's bad enough to go around togged out like a life saver on a drill day, but I can stand that 'cause I'm paid for it. […]”1913, Joseph C[rosby] Lincoln, chapter VII, in Mr. Pratt’s Patients, New York, N.Y.; London: D[aniel] Appleton and Company, →OCLC:
John doesn't get on with Jack. They're always arguing.