Akademik

disappearance
noun
1. the act of leaving secretly or without explanation (Freq. 4)
Syn: ↑disappearing
Ant: ↑appearance
Derivationally related forms: ↑disappear (for: ↑disappearing), ↑disappear
Hypernyms: ↑departure, ↑going, ↑going away, ↑leaving
Hyponyms: ↑vanishing
2. the event of passing out of sight (Freq. 1)
Ant: ↑appearance
Derivationally related forms: ↑disappear
Hypernyms: ↑happening, ↑occurrence, ↑occurrent, ↑natural event
Hyponyms: ↑ingress, ↑immersion, ↑evanescence, ↑vanishing, ↑receding, ↑fadeout
3. gradually ceasing to be visible (Freq. 1)
Syn: ↑fade
Derivationally related forms: ↑disappear, ↑fade (for: ↑fade)
Hypernyms: ↑termination, ↑ending, ↑conclusion
4. ceasing to exist
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he regretted the disappearance of Greek from school curricula

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what was responsible for the disappearance of the rainforest?

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the disappearance of resistance at very low temperatures

Hypernyms: ↑happening, ↑occurrence, ↑occurrent, ↑natural event

Useful english dictionary. 2012.