Le conseil syndical travaille avec le syndic.

They are related in form, but they do not mean the same thing.

• le conseil syndical = the co-owners’ council / supervisory council in a condominium setting
• le syndic = the property manager / condominium manager

So:

• syndical is an adjective describing conseil
• syndic is a noun

Even though they look similar, they play different roles in the sentence.

French usually uses an article where English often does not.

So French says:

• Le conseil syndical travaille...

where English might simply say:

• The council works...

The article le means the and marks conseil syndical as a specific thing.

Syndical is an adjective modifying conseil.

So the structure is:

• le conseil = the council
• syndical = relating to this condominium/association context

Together, le conseil syndical acts as one noun phrase.

This is different from le syndic, where syndic itself is the noun.

Because the subject is singular:

• Le conseil syndical = one council

So the verb must also be singular:

• travaille = works / is working

If the subject were plural, you would use travaillent:

• Les conseils syndicaux travaillent...

Avec means with.

It shows that the council works with the manager:

• travaille avec le syndic = works with the property manager

It is simply the normal French preposition here.

A rough English-style guide is:

• conseil ≈ kon-say
• syndical ≈ san-dee-kal or sin-dee-kal depending on how you approximate it
• syndic ≈ san-deek or sin-deek

A few useful pronunciation notes:

• The l in conseil is not strongly pronounced the way it would be in English spelling.
• Final consonants in French are often silent, but in syndic, the final c is pronounced.

Yes. Travaille is the present tense of travailler.

In French, the present tense can often translate as either:

• works
• is working

depending on context.

So this sentence could mean either:

• The council works with the property manager
• The council is working with the property manager

Without more context, both are possible.

The sentence follows the standard French order:

• Subject + verb + prepositional phrase

So here:

• Le conseil syndical = subject
• travaille = verb
• avec le syndic = prepositional phrase

This is very similar to normal English word order, which makes the sentence structurally straightforward.

Not in this sentence.

A learner might think that because syndical can remind them of syndicat or union language. But here, in housing/condominium vocabulary:

• le syndic = the building or condominium manager
• le conseil syndical = the council that works with and oversees that manager

So this is about property management, not labor unions.

You would make the article, noun, adjective, and verb plural:

• Les conseils syndicaux travaillent avec le syndic.

Changes:

• Le → Les
• conseil → conseils
• syndical → syndicaux
• travaille → travaillent

This is a useful example because it shows that French adjectives and verbs must agree appropriately with the noun.