De or het meetmast?

The correct Dutch article is:

de meetmast

How to use meetmast

the meetmastde meetmast
this meetmastdeze meetmast
that meetmastdie meetmast
our meetmastonze meetmast
your meetmastjouw meetmast
every meetmastelke meetmast
which meetmast?welke meetmast?
a big meetmast / the big meetmasteen grote meetmast, de grote meetmast