noun
happening or existing or done at the same time
• Syn: ↑simultaneity
• Derivationally related forms: ↑simultaneous, ↑simultaneous (for: ↑simultaneity)
• Hypernyms: ↑timing
• Hyponyms: ↑concurrence, ↑coincidence, ↑conjunction, ↑co-occurrence
Useful english dictionary. 2012.