subselect return in where clause

Group,

Is it possible to use a subselect result in a where statement ? If so,
how ?

Fx.
select some_stuff, more_stuff, 
(select other_stuff from other_table where other_table.stuff ilike
stuff.match) as other_stuff from stuff where other_stuff = 'hello'

thanks.
-- 
Best Regards,Michael Landin Hostbaek FreeBSDCluster.org - an International Community
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