On mind and in mind

[Ever Student]

Hi,
What's difference between "have in mind" and " have on mind"?
Thanks in advance

[amigos4]

Hi,
What's difference between "have in mind" and " have on mind"?
Thanks in advance

have something in mind:
to be thinking about something as a possibility (usually used in questions) 'I thought we might eat out tonight.' 'Where did you have in mind?' I think that's probably what he had in mind.

have someone or something on one's mind and have someone or something on the brain (More informal with brain.): to think often about someone or something; to be obsessed with someone or something. Bill has chocolate on his mind. John has Mary on his mind every minute. Karen has Ken on the brain.

[Ever Student]

have something in mind:
to be thinking about something as a possibility (usually used in questions) 'I thought we might eat out tonight.' 'Where did you have in mind?' I think that's probably what he had in mind.

have someone or something on one's mind and have someone or something on the brain (More informal with brain.): to think often about someone or something; to be obsessed with someone or something. Bill has chocolate on his mind. John has Mary on his mind every minute. Karen has Ken on the brain.

Thanks for your help.
Would it be correct if I said that "I have sth in my mind"?

[Raymott]

Thanks for your help.
Would it be correct if I said that "I have sth in my mind"?

No, the idioms are "I have something in mind" or "I have something on my mind".

You could say "I have lots of ideas in my mind". That's a valid usage, but it's not idiomatic; it's a normal use of the words, not a fixed saying. But "I have sth in my mind" doesn't sound right.

What's the word for non-idiomatic, meaning perfectly acceptable, but not an idiom?

[Ever Student]

No, the idioms are "I have something in mind" or "I have something on my mind".

You could say "I have lots of ideas in my mind". That's a valid usage, but it's not idiomatic; it's a normal use of the words, not a fixed saying. But "I have sth in my mind" doesn't sound right.

What's the word for non-idiomatic, meaning perfectly acceptable, but not an idiom?

Thank you.
I don't know. What's that word?

[amigos4]

Thank you.
I don't know. What's that word?

We'll have to wait for Raymott to answer this question?

[Raymott]

We'll have to wait for Raymott to answer this question?

I don't know. I was hoping someone could tell me!
I don't think there is such a word.