Tolerance or toleration is the practice of permitting a thing of which one disapproves, such as social, ethnic, sexual, or religious practices.

Tolerance, tolerant, or toleration may also refer to:

• Engineering tolerance, permissible limit(s) of variation in an object
  • Tolerance analysis, the study of accumulated variation in mechanical parts and assemblies
  • Tolerance coning, a budget of all tolerances that affect a particular parameter
• Paradox of tolerance, the problem that a tolerant person is antagonistic toward intolerance, hence intolerant of it
• Tolerance group, a way to ensure employees do not exceed their authority in financial transactions in an ERP system
• Tolerance Monument, an outdoor sculpture near Goldman Promenade in Jerusalem, Israel
• Tolerance tax, a historic tax that was levied against Jews in Hungary
• Tolerant Systems, the former name of Veritas Software
• Toleration Party, a historic political party active in Connecticut

Tolerance is a willingness or ability to tolerate something.

Sourced

• I could say analogously that tolerance is the affable appreciation of qualities, views, and actions of other individuals which are foreign to one`s own habits, beliefs, and tastes. Thus being tolerant does not mean being indifferent towards the actions and feelings of others. Understanding and empathy must also be present....
  • Albert Einstein, quoted in Banesh Hoffmann and Helen Dukas (eds.), Albert Einstein: The Human Side, Princeton university press 1979, p. 89

• People who are intolerant, categorize and over-react... should all be dragged against a wall and shot.
  • Arthur M. Jolly, in The Questionnaire (2010)

• The doctrine of toleration requires a positive as well as a negative statement. It is not only wrong to burn a man on account of his creed, but it is right to encourage the open avowal and defence of every opinion sincerely maintained. Every man who says frankly and fully what he thinks is so far doing a public service. We should be grateful to him for attacking most unsparingly our most cherished opinions.
  • Leslie Stephen, The Nineteenth Century, vol. 13 (1883) p. 665

• Unlimited tolerance must lead to the disappearance of tolerance. If we extend unlimited tolerance even to those who are intolerant, if we are not prepared to defend a tolerant society against the onslaught of the intolerant, then the tolerant will be destroyed, and tolerance with them. [...] We should therefore claim, in the name of tolerance, the right not to tolerate the intolerant.
  • Karl Popper, The Open Society and Its Enemies (1945), Vol. 1, Notes to the Chapters: Ch. 7, Note 4.

• Tolerance without dialogue is a euphemism for indifference.
  • Count Miklós Cseszneky de Milvány et Csesznek, in Párbeszéd, Partium, 2009 Spring edition, 16 p.