altas
/AHL-tas/
high

This illustrates things that are physically high or tall.
altas(Adjective)
high
?referring to level, position, or volume
,tall
?referring to height of people or objects
loud
?referring to voices or music (e.g., 'voces altas')
📝 In Action
Las casas en esa calle son muy altas.
A1The houses on that street are very tall.
Necesitamos estanterías más altas para guardar los libros.
A2We need higher shelves to store the books.
Las temperaturas máximas serán altas mañana.
B1The maximum temperatures will be high tomorrow.
💡 Grammar Points
Adjective Agreement
As an adjective, 'altas' must always match the noun it describes. Use 'altas' only when the noun is feminine and plural, like 'montañas' (mountains) or 'chicas' (girls).
❌ Common Pitfalls
Using the wrong ending
Mistake: "Mis casas son alto."
Correction: Mis casas son altas. (The adjective must agree with 'casas,' which is feminine plural.)
⭐ Usage Tips
The Base Form
Remember the base form is 'alto' (masculine singular). You add an '-a' for feminine singular ('alta') and an '-s' for plural ('altos' or 'altas').

The word can refer to official discharges, such as being released from a hospital.
altas(Noun)
discharges
?medical or military release
,registrations
?new sign-ups or subscriptions
releases
?official release from a duty or place
📝 In Action
El hospital registró diez altas médicas esta mañana.
B1The hospital recorded ten medical discharges this morning.
Tuvimos muchas altas nuevas en el gimnasio el mes pasado.
B2We had many new sign-ups at the gym last month.
El departamento gestiona las altas y las bajas del personal.
C1The department manages the registrations and cancellations of personnel.
💡 Grammar Points
The Noun Form
When 'altas' is used as a noun (usually preceded by 'las' or a number), it refers to the process of being entered into a system or released from a place (like a hospital), meaning you are 'up' or 'active' in the system.
❌ Common Pitfalls
Confusing Noun and Adjective
Mistake: "Las altas temperaturas son una alta."
Correction: Las altas temperaturas son un problema. (The noun 'alta' is used for official records, not generally for 'a high thing.')
⭐ Usage Tips
Crucial Phrase: Dar de alta
The most common way to hear the singular 'alta' is in the phrase 'dar de alta' (to register someone or discharge a patient). The plural 'altas' refers to multiple instances of this action.
✏️ Quick Practice
💡 Quick Quiz: altas
Question 1 of 2
Which sentence uses 'altas' as a Noun?
📚 More Resources
Frequently Asked Questions
What is the difference between 'altas' and 'altos'?
'Altas' is used for feminine plural nouns (e.g., 'las casas altas'). 'Altos' is used for masculine plural nouns (e.g., 'los edificios altos'). Both mean 'high' or 'tall' when used as adjectives.
When does 'altas' mean something official, like a discharge?
When it's used as a noun, usually with the article 'las' or a number (e.g., 'las altas'). It almost always appears in contexts related to administration, hospitals, or business, often paired with its opposite, 'bajas' (cancellations/dismissals).