A large, white, round cell character looking exhausted and frail, being approached by several small, spiky red virus shapes, symbolizing a compromised immune system.

sida

see-dah

nounmB2

AIDS?Acquired Immunodeficiency Syndrome

Also:Acquired Immunodeficiency Syndrome?The full name of the condition

📝 In Action

La prevención del sida es una prioridad de salud pública.

AIDS prevention is a public health priority.

Se ha avanzado mucho en el tratamiento del sida en las últimas décadas.

Much progress has been made in AIDS treatment in recent decades.

El sida es causado por el virus VIH.

AIDS is caused by the HIV virus.

Word Connections

Common Collocations

el virus del sida – the AIDS virus
contagio de sida – AIDS infection/transmission

💡 Grammar Points

Masculine Gender Rule

Even though 'sida' ends in 'a', it is a masculine noun ('el sida'). This is because it is an acronym for Síndrome de Inmunodeficiencia Adquirida, and the core word síndrome (syndrome) is masculine.

❌ Common Pitfalls

Using the Feminine Article

Mistake: "La sida"

Correction: El sida. Remember to use the masculine article 'el' because the word is grammatically masculine.

⭐ Usage Tips

Acronym Origin

SIDA is an acronym in Spanish, just like AIDS in English. It stands for Síndrome de Inmunodeficiencia Adquirida.

✏️ Quick Practice

💡 Quick Quiz: sida

Question 1 of 1

Which Spanish article is correctly used before the word 'sida'?

📚 More Resources

Word Family

VIH(HIV (Human Immunodeficiency Virus)) - noun

síndrome(syndrome) - noun

Frequently Asked Questions

What is the full Spanish name that 'sida' stands for?

'SIDA' stands for *Síndrome de Inmunodeficiencia Adquirida* (Acquired Immunodeficiency Syndrome).

Why is 'sida' masculine if it ends in 'a'?

Most words ending in 'a' are feminine, but 'sida' is an exception because it is an acronym for a phrase starting with the masculine noun *síndrome*.