How to Say "fib" in Spanish
The Spanish word for “fib” is “mentira” — A1 level. This is a very common word in everyday Spanish.
English → SpanishA1
NounA1
A small, harmless lie

Examples
No puedes confiar en él, siempre dice mentiras.
You can't trust him, he always tells lies.
Descubrimos que toda su historia era una mentira.
We discovered that his entire story was a falsehood.
¡Qué mentira tan grande me contaste!
What a big lie you told me!
Gender Rule
As a noun ending in -a, 'mentira' is always feminine. Use 'la' before it, or 'una' if you are referring to one lie.
Using the Verb vs. the Noun
Mistake: “I lie = *Yo soy mentira.* (Incorrect: This means 'I am a lie'.)”
Correction: The action of lying uses the verb *mentir*: *Yo miento.* (I lie.)
Related Translations
Learn Spanish with Inklingo
Interactive stories, personalized learning, and more.