Is there any difference between the two idioms, "

1. The pastor had a

2. The lecturer preferred the

3. The father had a frank

4. Do not miss the chance to meet the President

5. The monk mentioned this during his

**one-**" and "__to__-one**one-**", when the meaning is '__on__-one**between only two persons**'? Can they be used interchangeably, for instance, in the following situations?1. The pastor had a

__one-__session with the family discussing its problems.**to**-one2. The lecturer preferred the

__one-__meetings with his students.**on**-one3. The father had a frank

__one-__discussion with his children.**to**-one4. Do not miss the chance to meet the President

__one-__.**on**-one5. The monk mentioned this during his

__one-__class with his disciples.**to**-one
Comments

"One-to-one" is used in more abstract situations, as in: "There is a one-to-one correspondence between the independent variable and the dependent variable in a mathematical function."

anonymousThere is no difference. Feel free to use either of them.

Regards

hrsanei