How to Say "Phase" in Spanish

fase

/ˈfase/feminine

The Spanish word for phase is fase.

fase refers to a distinguishable part of a sequence.

Meaning: distinguishable part of a sequence (noun)

Is it said differently in some regions?

In Spain, fase is the most common way to say phase.

fase is a feminine noun, so it is preceded by the feminine article la (the phase). The plural form of fase is fases.

/ˈfase/

While fase is used for sequences, Spanish speakers prefer etapa to describe a phase of a person's life, such as 'a rebellious phase'.
When talking about the moon, Spanish uses fase for the general cycle but switches to cuarto to describe the 'quarter' phase.
The Spanish word fase shares its roots with the English word 'phase', as both trace back to the Ancient Greek word φάσις meaning 'appearance'.

Tengo dos generadores de electricidad de tres fases en mi sótano.
I have two three-phase power generators in my cellar.
This sentence shows how to use fase when discussing three-phase electricity.
Tatoeba #1711276 by marcelostockle, translation #454584 by MUIRIEL
El cáncer puede ser curado con facilidad si es diagnosticado en la primera fase.
Cancer can be cured easily if it is found in its first phase.
This sentence illustrates the use of fase when referring to a stage of a medical condition.
Tatoeba #1926226 by marcelostockle, translation #63418 by CK
No es una fase, mamá.
It's not a phase, Mom.
This sentence provides an example of the word used in a common conversational context.
Tatoeba #10993754 by DJ_Saidez, translation #10818075 by DJ_Saidez
La primera etapa del proyecto será la investigación
The first phase of the project will be the research
La tercera fase del plan es implementar nuevas estrategias de marketing
The third phase of the plan is to implement new marketing strategies
Mi período de estudiante fue una de las mejores fases de mi vida
My college period was one of the best phases of my life
3 more sentences on Tatoeba

Lucía and Javier are discussing the progress of a construction project.

Lucía

Ya terminamos la primera fase del proyecto.
We already finished the first phase of the project.
Javier

Eso es genial, Javier lo revisará mañana.
That is great, Javier will review it tomorrow.
Lucía

¿Cuándo empezamos la siguiente fase?
When do we start the next phase?
Javier

Empezaremos el lunes después de la reunión.
We will start on Monday after the meeting.

Sources

Wiktionary, “phase” translations and entries fase, CC BY-SA 4.0, dump of 2026-09-26.
Word origins: Wiktionary entries fase, CC BY-SA 4.0.
Example sentences: Tatoeba CC BY 2.0 FR.

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