What's the difference in meaning?

A. Usually there is no significant difference in meaning. I feel that "onto" is the more precise choice.

B. It seems unlikely. You may mean "I was holding on with one hand".

A: 'onto' means the action from going from a place to another in this case the chair. And 'on' means that the dog was already on the chair and jumped there in place.

B sentence: i dont really understand what you exactly want to say.

AnonymousAnd 'on' means that the dog was already on the chair and jumped there in place.

I agree that this is a theoretical possibility, but I believe that in practice it would hardly ever be interpreted in this way. In the given sentence, I believe that "on" would almost always be interpreted as meaning the same as "onto".

GPY Sir,I have one question about 'would'.what does would mean in your sentences above? Does would mean 'in your opinion ' in your sentences right? ?

I mean, 'I believe that in practical it would hardly ever be interpreted in this way' it means in your opinion it is hardly ever be interpreted in this way right? ?

tenjingGPY Sir,I have one question about 'would'.what does would mean in your sentences above? Does would mean 'in your opinion ' in your sentences right? ?

There is a weakly implied conditional, something like "If someone encountered the sentence, then 'on' would almost always be interpreted as meaning the same as 'onto'", or similar