noun

le tuyau

pipe · hose

Objet creux qui sert à faire passer un liquide, un gaz ou de l’air d’un endroit à un autre.

Word: tuyau

Meaning:
In French, "tuyau" primarily means pipe, tube, or hose. It refers to a hollow cylindrical object, typically made of metal, plastic, or other materials, used to convey liquids, gases, or sometimes electrical wires.

Parts:

The word "tuyau" is a masculine noun.
Plural form is tuyaux.

Usage:

Plumbing: "Le plombier a réparé le tuyau qui fuyait." (The plumber fixed the leaking pipe.)
Gardening: "J'arrose les plantes avec un tuyau d'arrosage." (I water the plants with a garden hose.)

Figurative Meaning:
Besides its literal meaning, "tuyau" also has a figurative use in French slang to mean a tip or useful piece of advice/information. People might say:

"Je vais te donner un tuyau pour réussir." (I'll give you a tip to succeed.)

This second meaning comes from the idea of a "conduit" delivering insider information.

Synonyms:

For literal "pipe": conducteur, tube, canalisation
For figurative "tip": conseil, astuce, indice

Antonyms:

No direct antonym for "tuyau" as a physical object, since it's a specific item.
For the figurative meaning ("tip"), an antonym would be secret or ignorance (lack of information).

Summary:
"Tuyau" primarily denotes a physical pipe or tube used for transporting fluids or air. It can also be used metaphorically to indicate a helpful hint or insider information. The word is masculine and takes "tuyaux" in its plural form.