contention
n.-
1 disagreement or conflict (n.) C1 Advanced Formalangry disagreement or fighting between people or groups.
a state of strife, dispute, or heated competition between parties.
ExampleThe new housing project has been a source of contention in the village for years.
ExampleThe proposed tax reforms became a major bone of contention between the two political parties during the final weeks of the election campaign.
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2 a claim or argument (n.) C1 Advanced Formal Academican opinion or idea that you state as being true during an argument.
an assertion or point maintained in an argument; a position taken or contended for.
ExampleIt is his contention that the company failed because of poor management.
ExampleThe lawyer's primary contention was that the evidence had been tampered with before it reached the laboratory for analysis.
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3 resource competition (n.) C2 Proficiency Technical Computinga situation where different parts of a computer system try to use the same resource at once.
competition by multiple components or users for a limited shared resource, such as bandwidth or memory.
ExampleThe network slowed down because of heavy contention for the available bandwidth.
ExampleThe database administrator identified significant resource contention as the primary cause of the latency spikes observed during peak operating hours.
From Middle English contencion, borrowed from Old French contencion, from Latin contentio, contentionem, from contendō (past participle contentus); equivalent to contend + -tion (similar formation to attention).