How to Say "final project" in Spanish
The Spanish word for “final project” is “tesis” — B1 level. This is a very common word in everyday Spanish.

Examples
Tengo que terminar mi tesis para graduarme en junio.
I have to finish my thesis to graduate in June.
Ella pasó meses investigando en la biblioteca para su tesis doctoral.
She spent months researching in the library for her doctoral dissertation.
El jurado hizo preguntas muy difíciles durante la defensa de su tesis.
The jury asked very difficult questions during his thesis defense.
The 'Is' Rule
Even though it ends in 's,' this word is feminine. Always use 'la' or 'una' with it.
One word, many items
The word 'tesis' doesn't change when it becomes plural. To say 'theses,' you just change the word 'the' from 'la' to 'las'.
The Gender Trap
Mistake: “El tesis es muy larga.”
Correction: La tesis es muy larga. (Tesis is feminine, so you must use 'la' and match the adjective ending).
Adding extra 'es'
Mistake: “Tengo que leer muchas tesises.”
Correction: Tengo que leer muchas tesis. (Never add 'es' to the end of this word; it already sounds plural!)
Related Translations
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