uncountable noun [oft NOUN to-infinitive] Determination is the quality that you show when you have decided to do something and you will not let anything stop you.

What is the meaning of full of determination?

the ability to continue trying to do something, even if it is difficult: [ + to infinitive ] She has a lot of determination to succeed. (Definition of determination from the Cambridge Academic Content Dictionary © Cambridge University Press)

What is the meaning of determination determine?

b : the resolving of a question by argument or reasoning Inspectors made the determination that the building is unsafe. 2 archaic : termination. 3a : the act of deciding definitely and firmly also : the result of such an act of decision.