*principle or principal(do these make sense?)

-She was a person of strong PRINCIPAL.
-The PRICIPALS sat together at the district confrence.
-How much of the total in my savings account is PRINCIPAL?
-His hay fever was the PRINCIPAL reason for his sneezing.
-It's not the facts that upset me,it's the PRICIPILES of the case
-The jury heard only the PRINCIPAL facts.
-Our school PRINCIPAL is strict but fair.
-Spend the interest,but don't touch the PRINCIPAL.
-Helping others is a guiding PRINCIPLE.
-In PRINCIPLE,we agree;on the facts,we do not.
-The PINCIPAL course at dinner was leg of lamb.
-Some mathematical PRINCIPLES are difficult to understand.
-The baby was the PRINCIPAL reason for his happiness.

***THANK YOU FOR YOUR HELP***

These are correct.

-The PRINCIPALS sat together at the district confrence.
-How much of the total in my savings account is PRINCIPAL?
It's not the facts that upset me,it's the PRINCIPLES of the case
-Our school PRINCIPAL is strict but fair.
-Spend the interest,but don't touch the PRINCIPAL.
-Helping others is a guiding PRINCIPLE.
-In PRINCIPLE,we agree;on the facts,we do not.
Some mathematical PRINCIPLES are difficult to understand.

http://dictionary.reference.com/browse/principal

do u mean the others are wrong or do you mean all 14 of them are correct

The others are wrong.

The correct spellings and usages are as follows:

- She was a person of strong PRINCIPLE. (meaning: moral or ethical belief)
- The PRINCIPALS (meaning: leaders or head individuals) sat together at the district conference.
- How much of the total in my savings account is PRINCIPAL? (meaning: initial sum of money)
- His hay fever was the PRINCIPAL (meaning: main or primary) reason for his sneezing.
- It's not the facts that upset me, it's the PRINCIPLES (meaning: fundamental truths or guidelines) of the case.
- The jury heard only the PRINCIPAL (meaning: main or most important) facts.
- Our school PRINCIPAL (meaning: head or chief) is strict but fair.
- Spend the interest, but don't touch the PRINCIPAL (meaning: initial sum of money).
- Helping others is a guiding PRINCIPLE (meaning: fundamental truth or belief).
- In PRINCIPLE (meaning: in theory or as a general matter), we agree; on the facts, we do not.
- The PRINCIPAL (meaning: main or featured) course at dinner was leg of lamb.
- Some mathematical PRINCIPLES (meaning: fundamental truths or laws) are difficult to understand.
- The baby was the PRINCIPAL (meaning: main or primary) reason for his happiness.

To differentiate between "principle" and "principal," it is essential to understand the context as well as the meanings associated with these words. "Principle" typically refers to moral or ethical beliefs, while "principal" can relate to prominent or chief individuals, initial sums of money, or primary reasons or aspects.