"ignore vs "be ignorant of"

[Nessie]

Hi,
1/ Are "ignore" and "be ignorant of" completely same in meaning?
2/ How about "should" and "ought to"? do they mean the same?

Many thanks in advance!
Nessie :)
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Sorry seems to be the hardest word...

[Haihao]

Hi Nessie,

IMO, 1/ to ignore means to disregard while "be ignorant of" suggests "without knowledge of". 2/ I don't think any two different words could mean 100% the same thing but sometimes they are exchangeable in usage such as "should" and "ought to". However, strictly speaking, 'should' is an aux. while 'ought to' a verb. Also, the latter takes on a sense of obligation while the former bears it less.

Haihao

[Molly]

[Haihao]

Oh, yes, I agree with you. It's an auxiliary as well. Sorry, my mistake.

[Nessie]

Thanks a lot, Haihao and Molly, and may I have your idea, Amy?
_________________
:(... something we never have again, I know... I guess I really really know.. :(

Sorry seems to be the hardest word...