to hint at something or indirectly suggest it, to indirectly refer or call attention to something;
e.g. The teachers frequently allude to the lack of a healthy meal program for students.
(verb)
to mention something briefly or in passing, without discussing it at length;
e.g. I will make sure to allude to these points in my speech.
(verb)
to bear similarity to or simply refer to an earlier artistic style or work, in a way that suggests a relationship, used to describe an artist or an artistic work;
e.g. These paintings allude to the works of van Gogh in their style.