Concurrence
WordNet
noun
(1) Acting together as of agents or circumstances or events
(2) The temporal property of two things happening at the same time
"The interval determining the coincidence gate is adjustable"
(3) Agreement of results or opinions
(4) A state of cooperation
WiktionaryText
Noun
- Agreement; concurring.
- An instance of simultaneous occurrence.
Noun
- competition (action of competing)