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fundir

foon-DEERfunˈdiɾ

to melt

Also: to cast
VerbA2regular ir
A colorful storybook illustration of a golden block of butter melting into a smooth yellow puddle on a warm surface.
gerundfundiendo
past Participlefundido
infinitivefundir

📝 In Action

Tienes que fundir la mantequilla en una sartén.

A1

You have to melt the butter in a pan.

El calor extremo fundió el asfalto de la calle.

B1

The extreme heat melted the asphalt on the street.

Están fundiendo bronce para hacer la estatua.

B2

They are casting bronze to make the statue.

Word Connections

Synonyms

  • derretir (to melt (usually for ice/sugar))
  • licuar (to liquefy)

Antonyms

  • congelar (to freeze)
  • solidificar (to solidify)

Common Collocations

  • fundir a fuego lento – to melt over low heat
  • punto de fusión – melting point

to blow out

Also: to burn out
VerbB1regular ir
Latin America
A colorful storybook illustration of a lightbulb with a broken filament inside and small grey smoke wisps to show it has stopped working.
gerundfundiendo
past Participlefundido
infinitivefundir

📝 In Action

Se fundió la bombilla de la cocina.

A2

The kitchen lightbulb blew out.

Hubo un apagón y se fundieron los plomos.

B1

There was a blackout and the fuses blew.

Si conectas todo a la vez, vas a fundir el fusible.

B2

If you connect everything at once, you're going to blow the fuse.

Word Connections

Synonyms

Common Collocations

  • se fundió el foco – the lightbulb blew (Latin America)
  • se fundieron los plomos – the fuses blew (Spain)

to merge

Also: to blend
VerbB2regular ir
A colorful storybook illustration of two different colored drops of paint, one blue and one yellow, flowing together to form green.
gerundfundiendo
past Participlefundido
infinitivefundir

📝 In Action

Las dos empresas se fundieron en una gran corporación.

B2

The two companies merged into one large corporation.

El horizonte funde el mar con el cielo.

C1

The horizon blends the sea with the sky.

Se fundieron en un largo abrazo.

C1

They melted/merged into a long embrace.

Word Connections

Synonyms

Antonyms

Common Collocations

  • fundirse en un abrazo – to lock in an embrace

Subjunctive

Imperfect Subjunctive

yofundiera
túfundieras
él/ella/ustedfundiera
nosotrosfundiéramos
vosotrosfundierais
ellos/ellas/ustedesfundieran

Present Subjunctive

yofunda
túfundas
él/ella/ustedfunda
nosotrosfundamos
vosotrosfundáis
ellos/ellas/ustedesfundan

Indicative

Preterite

yofundí
túfundiste
él/ella/ustedfundió
nosotrosfundimos
vosotrosfundisteis
ellos/ellas/ustedesfundieron

Imperfect

yofundía
túfundías
él/ella/ustedfundía
nosotrosfundíamos
vosotrosfundíais
ellos/ellas/ustedesfundían

Present

yofundo
túfundes
él/ella/ustedfunde
nosotrosfundimos
vosotrosfundís
ellos/ellas/ustedesfunden
View All Tenses & Moods →

Translate to Spanish

Words that translate to "fundir" in Spanish:

to blend→to cast→to melt→to merge→

✏️ Quick Practice

Quick Quiz: fundir

Question 1 of 3

Which sentence describes a lightbulb blowing out?

📚 More Resources

👥 Word Family▼
fundición(foundry / melting) — Noun
fundido(melted / fade-out (film)) — Adjective
fusión(fusion / merger) — Noun
🎵 Rhymes▼
📚 Etymology▼

From the Latin 'fundere', meaning 'to pour' or 'to shed'. This is why we also have the English word 'foundry'.

First recorded: 13th century

Cognates (Related words)

English: foundryFrench: fondre

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Frequently Asked Questions

What is the difference between 'fundir' and 'derretir'?

They both mean 'to melt', but 'fundir' is used more for things that need high heat (metals, cheese, chocolate) or for technical contexts like electronics. 'Derretir' is the common word for ice, snow, or sugar.

How do you say 'to blow a fuse' in Spanish?

You say 'fundir los plomos' (literally 'to melt the leads').

Can I use 'fundir' for people?

Yes, but usually as 'fundirse'. It can mean to be physically exhausted (like 'to be burnt out') or to blend into a crowd.