The noun ‘ambition’ is often followed by an infinitive. Here’s an EXPERT example:
I see the people that do the real work and what’s really said, in a way, is that the people that are the most giving,
hardworking and capable of making this world better, usually don’t have the ego and ambition to be a leader.
Student example from PELIC:
I believe that you need to associate with positive people who have an ambition to live a happy life.
Korean male level 4 writing class
Often, the C1 verb ‘fulfil’ takes ‘ambition’ as an object. PELIC student example:
Furthermore, children need an educational environment that is prepared and ready to fulfill their ambitions.
Arabic male level 4 writing class
In the English Vocabulary Profile, the countable noun ‘ambition’ is listed at B1 with the meaning:
something you want to achieve
It is often in a noun phrase followed by an infinitive, so we can do a search in iWeb for:
_AP AMBITION _TO _V
1 HIS AMBITION TO BECOME 102
2 ITS AMBITION TO BECOME 77
3 OUR AMBITION TO BECOME 73
4 OUR AMBITION TO MAKE 62
5 OUR AMBITION TO CREATE 45
6 MY AMBITION TO BECOME 43
7 HER AMBITION TO BECOME 41
8 HIS AMBITION TO MAKE 38
9 OUR AMBITION TO DELIVER 32
10 ITS AMBITIONS TO BECOME 25
11 OUR AMBITION TO BRING 23
12 OUR AMBITION TO BUILD 23
13 MY AMBITION TO PLAY 22
14 YOUR AMBITION TO LEAD 21
15 HIS AMBITION TO CREATE 20
16 HIS AMBITION TO PLAY 19
17 OUR AMBITION TO PROVIDE 19
18 MY AMBITION TO MAKE 18
19 MY AMBITION TO STUDY 17
20 HIS AMBITION TO WIN 16
or with an adjective before:
1 LIFELONG AMBITION TO BECOME 10
2 BURNING AMBITION TO BECOME 8
3 BURNING AMBITION TO SUCCEED 8
4 PERSONAL AMBITION TO MAINTAIN 8
5 BIG AMBITIONS TO BECOME 7
As the subject before ‘BE’
1 OUR AMBITION IS TO MAKE 63
2 OUR AMBITION IS TO BECOME 55
3 OUR AMBITION IS TO CREATE 54
4 OUR AMBITION IS TO HELP 39
5 ‘S AMBITION IS TO BECOME 30
The uncountable noun is listed at B2 with the meaning:
a strong feeling that you want to be successful or powerful
For example:
You‘ve shown more ambition in the last sixty seconds than I‘ve seen in the prior two years,
but you are delusional if you think you can survive without me.