A multi is a defined collection of geometries of a single, common type that is treated as a single unit. Multis cannot be nested or have a hierarchy within them.
A multipoint is a defined collection of Point geometries.
fme_geometry = fme_aggregate
fme_type = fme_point
A multitext is a defined collection of Text geometries.
fme_geometry = fme_aggregate
fme_type = fme_text
A multicurve is a defined collection of Curve geometries.
fme_geometry = fme_aggregate
fme_type = fme_line
A multiarea is a defined collection of Area geometries.
fme_geometry = fme_aggregate
fme_type = fme_area
A multisurface is a defined collection of Surface geometries.
Optionally, multisurfaces may possess front or back appearances, and may be single or double sided.
fme_geometry = fme_aggregate
fme_type = fme_surface
A multisolid is a defined collection of Solid geometries.
Optionally, multi solids may possess front or back appearances, and may be single or double sided.
fme_geometry = fme_aggregate
fme_type = fme_solid