Augury implies a prediction about the future based on signs, often seen as superstitious in modern times. The broken mirror was taken as an augury of seven years bad luck.
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Literary Device
In literature, augury may be used to foreshadow events or as a metaphor to add depth to a story. The protagonist's consistent nightmares were an augury of the tragedy that unfolded.
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Cultural Sensitivity
Be aware that some cultures take auguries seriously, often tied to religious or spiritual beliefs. The elders considered the eclipse an important augury, signaling a time for change.