So, if we cannot agree on which of these things the word "tollerance" means, maybe we should broaden our vocubaly and use a different word for each of the them.
ToleranceAmerican Heritage Dictionary
The capacity for or the practice of recognizing and
respecting the beliefs or practices of others.
Leeway for variation from a standard.
The permissible deviation from a specified value of a structural dimension, often expressed as a percent.
Physiological resistance to a poison.
The capacity to absorb a drug continuously or in large doses without adverse effect; diminution in the response to a drug after prolonged use.
Acceptance of a tissue graft or transplant without immunological rejection.
Unresponsiveness to an antigen that normally produces an immunological reaction.
The capacity to endure hardship or pain.
Online Etymology Dictionary
1412, "endurance, fortitude," from O.Fr. tolerance (14c.), from L. tolerantia "endurance," from tolerans, prp. of tolerare "to bear, endure, tolerate" (see toleration). Of authorities, in the sense of "permissive," first recorded 1539; of individuals, with the sense of "
free from bigotry or severity," 1765. Meaning "allowable amount of variation" dates from 1868; and physiological sense of "ability to take large doses" first recorded 1875. Tolerant is recorded from 1784. The verb tolerate is attested from 1531.
WordNet
1. the power or capacity of an organism to tolerate unfavorable environmental conditions
2. a disposition to allow freedom of choice and behavior [syn: permissiveness] [ant: restrictiveness]
3. the act of tolerating something
4. willingness to recognize and
respect the beliefs or practices of others
[ant: intolerance] 5. a permissible difference; allowing some freedom to move within limits [syn: allowance]
Associate words:
Respect1. a particular, detail, or point (usually prec. by in): to differ in some respect.
2. relation or reference: inquiries with respect to a route.
3. esteem for or a sense of the worth or excellence of a person, a personal quality or ability, or something considered as a manifestation of a personal quality or ability: I have great respect for her judgment.
4. deference to a right, privilege, privileged position, or someone or something considered to have certain rights or privileges;
proper acceptance or courtesy; acknowledgment: respect for a suspect's right to counsel; to show respect for the flag; respect for the elderly.
5. the condition of being esteemed or honored: to be held in respect.
6. respects, a formal expression or gesture of greeting, esteem, or friendship: Give my respects to your parents.
7. favor or partiality.
8. Archaic. a consideration.
9. to hold in esteem or honor: I cannot respect a cheat.
10. to show regard or consideration for: to respect someone's rights.
11. to refrain from intruding upon or interfering with: to respect a person's privacy.
12. to relate or have reference to.
13. in respect of, in reference to; in regard to; concerning.
14. in respect that, Archaic. because of; since.
15. pay one's respects, a. to visit in order to welcome, greet, etc.: We paid our respects to the new neighbors.
b. to express one's sympathy, esp. to survivors following a death: We paid our respects to the family.
16. with respect to, referring to; concerning: with respect to your latest request.
Intolerance1. lack of toleration;
unwillingness or refusal to tolerate or respect contrary opinions or beliefs, persons of different races or backgrounds, etc.
2. incapacity or indisposition to bear or endure: intolerance to heat.
3. abnormal sensitivity or allergy to a food, drug, etc.
4. an intolerant act.
Bigotry1. stubborn and complete intolerance of any creed, belief, or opinion that differs from one's own.
2. the actions, beliefs, prejudices, etc., of a bigot.
The meaning of the word "tolerance" is not up for debate. If ones intended meaning doesn't match what the dictionary says, than one should use another word, or they may continue using the word how they wish and accept that they will be using it incorrectly. In time, consistently incorrect use of a word will either change the meaning of the word, or expose the user as a fool.