GRANT & DROP

I recently suffered the pains of not having good security on a database
when a developer dropped a production transaction payment table.  Thus
now I am paying attention to what I should have before which is database
security.  I am looking at the grant command and see it covers alot of
important things, but the one I am most interested is DROP TABLE and I
don't see it, nor ALTER.  Does DELETE cover DROP as well?  Anyone have
experience here?

TIA,

Gavin