This is the 420th most frequent Spanish word.
fundamental
Essential or basic.
Here, 'fundamental' is used as an adjective to indicate the essential or primary importance of education in societal development.
La educación es fundamental para el desarrollo de una sociedad.
Education is fundamental for the development of a society.
In this sentence, 'fundamental' expresses the crucial necessity of understanding basic concepts as a preliminary requirement for further progress.
Es fundamental que los estudiantes comprendan los conceptos básicos antes de avanzar.
It is fundamental that students understand the basic concepts before progressing.
The adjective 'fundamental' here highlights the pivotal and indispensable role of the support received in achieving the project's success.