How to Say "fundamentals" in Spanish
The Spanish word for “fundamentals” is “principios” — B1 level. This is a very common word in everyday Spanish.
English → SpanishB1
nounB1
basic truths or laws (e.g., of science)

Examples
Es un hombre de firmes principios.
He is a man of firm principles.
Su decisión va en contra de todos mis principios.
Their decision goes against all my values.
Debemos aprender los principios básicos de la programación.
We must learn the basic fundamentals of programming.
Always Plural for Ethics
When talking about a person’s moral code or values, 'principios' is almost always used in the plural form.
Confusing Singular and Plural Meanings
Mistake: “El principio de la física. (Using singular when referring to multiple fundamentals.)”
Correction: Los principios de la física. (Use plural when referring to the established rules of a system.)
Related Translations
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