Maintaining advantage, open main push possibly

• The art of gaining the advantage

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
one-upmanship \one-upmanship\ n. The attitude or practice of trying to keep one step ahead of a friend or competitor; vigorous competitiveness.

WordNet Word definitions in WordNet
n. the practice of keeping one jump ahead of a friend or competitor

Wikipedia Word definitions in Wikipedia
One-upmanship is the art or practice of successively outdoing a competitor . Exactly when the term originated is unknown; several examples are known from the early 1900s. It was used in the title of a book by Stephen Potter , published in 1952 as a follow-up ...

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
noun EXAMPLES FROM CORPUS ▪ Watching the children together gave reassurance that childhood is not all one-upmanship and go-for-the-jugular.

Wiktionary Word definitions in Wiktionary
n. 1 (context idiomatic English) The art or practice of successively outdoing a competitor. 2 (context idiomatic English) A succession of instances of outdoing a competitor.