Allusion

Main Entry: al·lu·sion

Pronunciation: &-'lü-zh&n

Function: noun

Etymology: Late Latin allusion-, allusio, from Latin alludere

1 : an implied or indirect reference especially in literature; also : the use of such references

2 : the act of alluding to or hinting at something - al·lu·sive /-'lü-siv, -ziv/ adjective - al·lu·sive·ly adverb - al·lu·sive·ness noun

This is what allusion means according to Merriam Webster. Here is the link for more words