How do I use the word reckon?
I've read a comment on Instagran which said: What do you reckon? it means the same What's up?

Question

Answer

Well I reckon that I should teach you how to use reckon.
As a verb, reckon means: 
to form an opinion on an issue (I reckon that the bird fell from the tree)
to have to do something (Well I reckon that...)
or ask for someone else's opinion (what do you reckon?).

Although, if you add and -ing to the end of reckon, it becomes the noun reckoning. 
Reckoning means the destruction of something; absolute chaos. (The day of reckoning has come!)

Answer

To 'reckon' is to form an opinion on something.

For example:
"What do you reckon?" 
is the same as saying
"What is your opinion?"

Or in reference to a specific thing,
"What do you think [about it]?"

There are old uses of the word 'reckon' as well, but these aren't used any more. Only 'reckon' in the sense of thinking is used much any more.

Answer

Nop.. It means "What do you think?" .. "What's your opinion (about it)?"

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