USA HISTORY

Detailed explanation-1: -Sometimes, though, a contention can be a battle of words or a struggle between two parties over a single point. The expression “bone of contention” describes a narrow object of disagreement that reaches the level of strife, or contention. For two hungry dogs, though, the bone of contention might be a serious matter.

Detailed explanation-2: -1. [count] : something (such as a belief, opinion, or idea) that is argued or stated. It is her contention [=she believes and says] that the new law will only benefit the wealthy. Evidence supports the contention [=claim] that the island was uninhabited before the 18th century.

Detailed explanation-3: -A matter that forms the basis of a disagreement, struggle, etc.

Detailed explanation-4: -: being argued about : not yet decided. an issue that is still in contention.