Unless they give the exact wood species and ideally the Latin name for it, you are always open to the wide variety of timber types that make up the generic families of woods used in guitar construction, and local wood marketing descriptions can further lead to misunderstandings.
Meranti isn't mahogany, but it's closer to mahogany in looks and properties than say ash or maple. There are also several varieties of meranti, and dark red meranti is often sold as 'Philippines mahogany', which leads people astray if they don't check further.