Meaning : Have smooth relations.

Example : My boss and I get along very well.

Synonyms : get along, get along with, get on with

Meaning : Get on board of (trains, buses, ships, aircraft, etc.).

Synonyms : board

Meaning : Get up on the back of.

Example : Mount a horse.

Synonyms : bestride, climb on, hop on, jump on, mount, mount up

Meaning : Grow late or (of time) elapse.

Example : It is getting on midnight--let's all go to bed!.

Meaning : Appear in a show, on T.V. or radio.

Example : The news won't be on tonight.

Synonyms : be on

Meaning : Develop in a positive way.

Example : He progressed well in school.
My plants are coming along.
Plans are shaping up.

Synonyms : advance, come along, come on, get along, progress, shape up

Meaning : Grow old or older.

Example : She aged gracefully.
We age every day--what a depressing thought!.
Young men senesce.

Synonyms : age, maturate, mature, senesce