This is the 1807th most frequent Portuguese word.
madeira
"Madeira" means "wood" or "timber" in English.
Here, 'madeira' refers to the material used to construct the table, emphasizing its nature as wood.
A mesa é feita de madeira.
The table is made of wood.
In this instance, 'madeira' describes the material that the shed is made of, again emphasizing wood.
Ele comprou um galpão de madeira para o jardim.
He bought a wooden shed for the garden.
Here, 'madeiras' refers to logs or pieces of timber, highlighting the substance in its raw form as found in nature.