allusion
al·lu·sion
/əˈluːʒən/ noun , pl -sions
: a statement that refers to something without mentioning it directly
[ count ] The lyrics contain biblical allusions.
— often + to
She made an allusion to her first marriage, but said nothing more about it.
[ noncount ] She made allusion to her first marriage.
Do not confuse allusion with illusion.
al·lu·sive /əˈluːsıv/ adj
allusive lyrics