No. Just memorizing words won’t get you there. Looking up the definition of “go” and memorizing it won’t teach you that “go over” means review, that “go under” means to go out of business, that “go on” means to continue, etc, etc, etc.

You need a lot of input before you’ll understand 75% of the text in a language. Vocabulary flashcards (preferably with audio) can help make some very simple dialogues or stories comprehensible at the beginning but flashcards are not enough for learning a language.