Allude is used when mentioning something indirectly or subtly. In her speech, she alluded to changes without outlining specifics.
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Cultural Knowledge
Understanding allusions may require knowledge of specific cultures, history, or texts. His writing alludes to Greek mythology, requiring some background to grasp.
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Careful Connotation
The verb 'allude' may carry a connotation of tact or avoidance of directness. He alluded to his previous job, hinting without explaining why he left.