How to Say "boob" in Spanish
The Spanish word for “boob” is “teta” — A2 level.
English → SpanishA2
nounA2informal
very informal slang

Examples
El bebé tiene hambre y quiere teta.
The baby is hungry and wants to breastfeed.
Esa vaca tiene las tetas muy grandes.
That cow has very large teats.
Mi hermana decidió darle la teta a su hijo hasta los dos años.
My sister decided to breastfeed her son until he was two.
Gender and Endings
Since it ends in '-a', it is a feminine word. Always use 'la' or 'una' with it.
Informal vs. Formal
While 'pecho' is the neutral word for chest, 'teta' is the word families use for nursing. It's not necessarily 'dirty,' but it is very casual.
Use in Medical Settings
Mistake: “Using 'teta' with a doctor.”
Correction: Use 'pecho' or 'seno' in professional or medical environments to sound more polite.
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