How to Say "stamped" in Spanish
The Spanish word for “stamped” is “sellado” — A2 level. This is a very common word in everyday Spanish.

Examples
El sobre está sellado.
The envelope is sealed.
Necesitas el pasaporte sellado para entrar.
You need the stamped passport to enter.
Compré jamón sellado al vacío.
I bought vacuum-sealed ham.
The 'O' or 'A' Rule
Since this word is describing something, you must change the ending to match. Use 'sellado' for masculine items (el sobre) and 'sellada' for feminine items (la caja).
Using with 'Estar'
We usually use this word with 'estar' because being sealed is often a state or condition that can change (the box is currently sealed).
Seal vs. Sealed
Mistake: “Puse un sellado en la carta.”
Correction: Puse un sello en la carta. 'Sello' is the physical stamp; 'sellado' is the description of the letter after you stamp it.
Other Meanings of “sellado”
“sellado” can also mean:
- the action of marking something(B1)
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