Ceux en laine sont élégants, mais ceux en coton sèchent plus vite après la pluie.

Ceux means those ones or simply the ones. French often avoids repeating a noun when it is already understood from context.

So:

• Ceux en laine = the wool ones
• Ceux en coton = the cotton ones

This is very natural in French. In English, we do the same thing:

• The wool ones are elegant, but the cotton ones dry faster.

If you wanted to repeat the noun in French, you could, but it would sound heavier depending on the context.

Ceux is a demonstrative pronoun. It replaces a plural masculine noun that has already been mentioned or is obvious from context.

Here is the full set:

• celui = the one / that one (masculine singular)
• celle = the one / that one (feminine singular)
• ceux = the ones / those ones (masculine plural)
• celles = the ones / those ones (feminine plural)

So if the hidden noun were feminine plural, you would use celles, not ceux.

Here en means made of, in, or of, depending on how English would naturally say it.

So:

• en laine = made of wool / wool
• en coton = made of cotton / cotton

French commonly uses en for materials, especially with clothing and objects:

• une robe en soie = a silk dress
• une table en bois = a wooden table
• des gants en cuir = leather gloves

In this sentence, ceux en laine literally means those in wool, but natural English is the wool ones.

Usually, en laine is the natural choice when talking about the material something is made from.

• des chaussettes en laine = wool socks
• un pull en coton = a cotton sweater

Using de laine here would usually sound unnatural for material.

A helpful rule:

• en + material is very common for physical composition.
• de is used in many other structures, but not usually this one.

Because the subject is plural: ceux = the ones / those ones.

So the verb must also be plural:

• ceux ... sont = those ones are
• not ceux ... est

And the adjective must agree too:

• élégants = masculine plural
• élégant = masculine singular
• élégante = feminine singular
• élégantes = feminine plural

Since ceux is masculine plural, élégants must also be masculine plural.

That s shows plural agreement.

In French, adjectives usually agree with the noun or pronoun they describe in gender and number.

Here:

• ceux = masculine plural
• so élégants must be masculine plural too

Compare:

• celui en laine est élégant = the wool one is elegant
• ceux en laine sont élégants = the wool ones are elegant

Sèchent comes from the verb sécher, meaning to dry.

In this sentence it means dry in the sense of become dry:

• ceux en coton sèchent plus vite = the cotton ones dry faster

It is in the 3rd person plural present tense because the subject is ceux.

Conjugation of sécher in the present:

• je sèche
• tu sèches
• il/elle sèche
• nous séchons
• vous séchez
• ils/elles sèchent

Notice the accent change:

• é in the infinitive: sécher
• è in some forms: je sèche, ils sèchent

That change helps reflect the pronunciation.

Because the sentence needs an adverb, not an adjective.

• vite = quickly / fast → adverb
• rapide = fast → adjective

Here, sèchent is a verb, so we need something that modifies the verb:

• They dry faster → modifies dry
• therefore French uses plus vite

You could also say plus rapidement, which is more formal or a bit heavier:

• ceux en coton sèchent plus rapidement

But plus vite is very natural and common.

Usually, yes, in this kind of sentence.

Literally:

• plus = more
• vite = quickly / fast

So plus vite literally means more quickly, but natural English often uses faster.

Examples:

• Il court plus vite. = He runs faster.
• Ça sèche plus vite. = It dries faster.

So the exact English wording depends on what sounds natural.

Après la pluie means after the rain.

It tells us when the cotton ones dry faster. Placing it at the end is very natural in French, just like in English:

• ...dry faster after the rain

French often places this kind of time phrase after the main idea. You could move it for emphasis, but the original order is the most neutral and natural.

Usually, no. In this sentence, repeating ceux is the clearest and most natural structure:

• Ceux en laine sont élégants, mais ceux en coton sèchent plus vite...

If you said only:

• Ceux en laine sont élégants, mais en coton sèchent plus vite...

that would not work well, because en coton by itself is not a subject. French needs the pronoun again.

So unlike English, where repetition can sometimes be avoided more easily, French often repeats the pronoun for clarity.

Then ceux would change to celles.

For example, if you were talking about shirts (chemises, feminine plural):

• Celles en laine sont élégantes, mais celles en coton sèchent plus vite après la pluie.

Changes:

• ceux → celles
• élégants → élégantes

The verb sont and sèchent stay the same because they are plural in both cases.

Ceux is pronounced roughly like suh with the French vowel eu: /sø/.

A few helpful pronunciation notes:

• The final x is silent.
• It does not sound like English soo or sock.
• It is the same pronunciation as ce in some contexts? No—ce is different.

Other useful pronunciations in the sentence:

• laine sounds like len
• coton sounds roughly like ko-ton with French vowels
• sèchent sounds roughly like sesh
• plus vite in careful speech is roughly plu veet

A learner-friendly point: even though sèchent is spelled with -ent, that ending is not pronounced here.

No. Ceux en laine means the ones made of wool. It refers to some understood objects.

But les laines would usually mean the wools or different kinds/quantities of wool, not the wool ones. So that would change the meaning.

French uses ceux/celles + prepositional phrase very often to mean the ones that are... or the ones made of...:

• ceux de Marie = Marie’s ones
• ceux en cuir = the leather ones
• celles du fond = the ones at the back

So ceux en laine is a very useful pattern to learn.